'Difference' — the reason a game was lost, blamed on one position: 'jungle diff', 'support diff'. The record's entry for the shortest possible post-mortem, and, since 2022, for any comparison: 'coffee diff', 'dad diff'.
'Teacher diff' said by a pupil about two classes' exam results, in 2024, to the teacher. The record notes the teacher agreed.
Correction to the headnote: Diff was not coined, it was noticed. Someone said it, someone else screenshotted it, and the screenshot is the coinage.
For the record: Diff is not a joke, it is a shorthand. The joke is what happens when someone outside the group tries to use it as one.
Where did you see it, and when? A date and a source that still resolves.
