It started about 25 years ago in a serious online forum about language and grammar when somebody asked seriously about the correct name of the @ symbol. The thread then continued to discuss the formal names of other symbols until it diverged from the original point:
>>>>>> What's a pilcrow? >>>>> "¶" is a pilcrow. What's an octothorp? >>>> "#" is an octothorp. What's a virgule? >>> A virgule is an old musical instrument. What's a spinet >>A spinet is a small grove of trees. What's a copse?
And so on. It's been going on in various parts of the net since being evicted from the original forum, and has spawned many new threads.
Answer a question imaginatively, ask a "What is" question connected to your answer.
It is when you manage to sort out a longstanding issue, such as a break up, by text, thus finally getting closure, or texture, as it is increasingly known as.