A useful combination of crap and happenning, mainly used in the workplace.
What's crappenning?
anal sex so extreme it results in the rectal passage falling to pieces
jerry springer: today we're gonna meet someone who experienced rectal annihilation
bill cosby: it's true, theo reamed me and i've been confined to a wheelchair ever since
Variation of drunk, pissed, pished, rat arsed, bladdered, blootered, arseholed.
"Last night I was fuckin' mingin'!"