When you crap yourself, but not a liquid shit, a nice hard terd.

When you get fucked so hard in the ass you pop a boner.

The act of someone doing a poo, or the poo is slightly poking out the bumhole.
It is called a Ass Boner as the poo poking out your bum is like your penis getting errect.

When something turns you off so much that you get a negative boner which then comes out your ass. Or when something turns you on that should not causing you to get a negative boner which then comes out your ass.

A Freudian slip for "bonus".

thee ultimate in foul language, no one can respond to this or just something you say before your about to kick someone's fuckin teeth in but you have to look real mad for it to work