e.g. 1 -

John: (bumps into Mark)

Mark: What the fuck John (pushes John into the wall)
David: (just observed this) Mark that was such a tidif you should probably apologise to John.

e.g. 2 -
Japan attacking Sydney Harbour in World War 2 was a bit of a tidif.

phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz