The greatest word in the English language fucked its own offspring to create the second greatest word.
Fuck fucked fuck-up and produced the glorious fup.
Fup can mean fuck or it can mean fuck-up, or both, who gives a fup?
Fup is the fun and friendly version. Think about the f-bomb. A fup-bomb doesn't sound like that. It sounds like this:
fup
But it still can fupping do every fuptastic thing its fuptard sire accidentally created when it fupped.