Double deuce

Aka (a Deuce and a half) when one has a bowel movement, stands up to leave and by the act of standing, loosens another piece of feces and and one has to abandon the plan to leave the bathroom to go back,sit down and finish it again.

Also know as a gmc jimmy ton and a half truck Circa ww2.

Grampa told me about his war times and the big trucks he worked on, like the double deuce.