When an individual has to shit very badly and goes in his pants. What other people see is a reverse boner made of shit protruding from your back pocket.
My Shit Stiffy stunk like a mother.
When one of your friends has to make an oral report but doesn't know what to say. He then proceeds to awkwardly talk about cheeseburgers for the next 20 minutes. Everyone in the classroom is dumbfounded.
His cheeseburger speech made me cry of laughter.