Inside Joke Vault
Every couple has a handful of phrases that only the two of you understand: the name of the bad Airbnb, the sound of the neighbours gate at six in the morning, the phrase that once ended an argument because it was so absurd. Those phrases are not jokes exactly. They are a private language, and they die quietly. A phrase you both loved in March can be unintelligible by August because nobody has used it in five months, and the moment you have to explain it is the moment it stops working. This tool scores a single phrase on four measurable things: how often you repeat it, how long ago you last used it, where it came from, and how many people have to get it. It then gives you a permanence index and one specific instruction: use it this week, or let it go.
How to use it
Type the phrase exactly as the two of you say it, including the wrong spelling when the wrong spelling is part of it. The vault should hold the version you actually use, not the version that is correct.
Write the story behind it in two or three sentences: where it happened, who was there, what was actually funny. The tool scores that scene separately from the punchline, because a one-line phrase sitting on a vivid memory ages very differently from a four-line setup with no memory behind it.
Fill in how many times you have used it, roughly how old it is, and how many months ago you last used it. Rough numbers are fine and honest numbers beat tidy ones. The index is driven by the gap between how often you say it and how long you have been quiet.
Set your own decay rating before you look at the index: how alive does this feel right now, from 0 for a phrase you would have to explain to 100 for one you could drop into a message tonight. The gap between your rating and the index is usually the most useful number on the page.
Three common mistakes
- Rating before counting. People rate phrases by feeling, and feeling runs hot right after a good weekend. The repetition count and the idle months are the two numbers that do not care how you feel, so enter them first and let your rating sit next to the result instead of driving it.
- Treating the story as part of the joke. A short phrase with a big scene behind it (a wedding, a road trip, a landlord) ages better than a long setup with no scene at all. That is why story depth is scored on its own rather than folded into the phrase itself.
- Reading a low index as a failure. An index under 35 usually means one of two things: the phrase needs a shared scene you no longer have, or the phrase was never really yours to begin with. A vault of 12 phrases where 4 are alive is healthier than a vault of 12 where every phrase needs a paragraph of explanation.
- Running the tool once and never comparing. The index only becomes useful across a set. Score every phrase, sort by index, and then look at the top three: in most vaults the survivors all trace back to the same year and the same kind of scene, which is a fact about the two of you rather than about the jokes.
How the permanence index is built
The index is the product of two halves. The first half is quality: where the phrase came from (a memory only the two of you have scores 100, a show or place you both know scores 80, an invented wordplay scores 68, something found online scores 34), who has to get it (only the two of you scores 100, close friends 80, a wide circle 58), and how much scene sits behind it (story depth, measured in characters of story, up to 100). Quality is weighted 45 percent origin, 30 percent audience, 25 percent story.
The second half is recall: how reachable the phrase is right now. Repetition is your uses per year scaled to 100 (you hit 100 at 20 uses a year). Freshness starts at 100 and halves every 4.5 months of silence, so seven idle months leaves it at 34.0. Recall is 55 percent repetition and 45 percent freshness.
Run the default example through it. 34 uses over 30 months is 13.6 uses a year, which is a repetition score of 68. Seven idle months gives freshness 34.0. With a shared memory, an audience of two and a story of 173 characters, quality is 100. Recall is 0.55 x 68 plus 0.45 x 34.0, which is 52.7, and the index is 52.7. Nothing here is a claim about humour. It is a claim about reachability: can you both still produce this phrase without a setup?
Your rating versus the index: the calibration gap
The gap between your own decay rating and the index is the most interesting number on the page, because the two come from completely different places. Your rating is a mood reading. The index is arithmetic on four inputs. When they disagree, one of three things is true.
- You rate it below the index (gap under -8). This is usually the silence pattern: the phrase is fine, you just stopped telling it. The default example shows this, with your 40 against an index of 52.7 and a gap of -12.7. The repair is one deliberate use, which lifts the index to 82.4 because freshness resets to 100 while the other three components stay exactly where they are.
- You rate it above the index (gap over 8). You are holding private context the tool cannot see: a face, a tone, a night that would take ten minutes to explain. That context is real, and it is also the part that will not survive a move to a new city or a year without contact.
- They agree (gap within 8 points). The phrase is well calibrated. It is exactly as alive as you think, and it stays that way only while you keep using it.
Run the same phrase twice, a week apart, with your rating written down both times. If the rating falls while the inputs stay the same, the phrase is decaying in your head, not in the vault.
The maintenance maths of a shared vocabulary
Every phrase decays on a schedule you can write down. Freshness halves every 4.5 months, so a phrase needs roughly one use every four to five months to stay above a score of 50. Multiply that by the number of phrases and you get the real cost of a shared vocabulary: a vault of 12 phrases needs 2.7 uses a month, which is about 33 across a year.
That number is usually higher than couples expect. One phrase a week sounds like plenty, but one a week across a 12 phrase vault means each phrase is spoken once every 12 weeks, which is nearly three times the half-life. Two a week is closer to right, and it is also the moment a vault stops feeling like a museum and starts feeling like a live language.
- Below 6 uses a year, a phrase is effectively archived. Mark it and move on rather than pretending.
- Between 6 and 13 uses a year, the phrase is in the Fading band and one message will bring it back.
- Above 13 uses a year, the phrase is load bearing. These are the ones that make an evening feel like yours.
Notice what is not in this maths: how good the jokes are, how long you have been together, or how you get on. The tool measures vocabulary maintenance, which is a small, practical, fixable thing. That is exactly why it is worth a page of its own.
FAQ
What is the difference between a joke and an inside joke?
The index says Fading but the phrase still works when I use it. Who is wrong?
How many phrases should a vault hold?
My partner rates the same phrase completely differently. What do I do with that?
Does a low index say anything about our relationship?
Limits of this tool
- This tool measures the reachability of one shared phrase. It is a vocabulary tool, not an assessment of closeness, commitment, happiness or anything you might read into it.
- Limits of this tool: the index is built from four numbers you supply, so it can only be as honest as those numbers. It cannot measure private context, and it cannot tell a changed scene apart from a changed mood.
- Nothing is stored or transmitted. The tool runs entirely in your browser and forgets everything when you close the tab.
- The band names (Eternal, Classic, Fading, Retired) describe one phrase at one moment in time. They are descriptions of a lexical habit, not verdicts on a relationship, and they are not meant to be quoted at anyone.