Fediverse, give me these...
Catchphrases or sayings you have with friends or family that are totally unique to you. Nobody else knows them but it's shorthand for something that those in the know understand, and are still in use.
One example of mine is "everything you like". Basically it means accept what you're given, or, it will be fine, go with it.
The origin is a Turkish takeaway/takeout place in London when we were young. You'd ask the owner, What's in this? and the answer would be a list of random and not exactly accurate ingredients, followed by the phrase "everything you like".
Both a reassurance and a sales pitch. Everything I like? How can I refuse! I'll take two.