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

A man who messes around with other men, but no one would ever know by looking or talking to him. Used by gay black men to identify masculine gay men or DL Brothas.

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.

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.

a boner that you get in you bumbum