dump the hummus
1) To defecate fecal matter that resembles the texture and/or color of hummus.

2) To defecate (i.e. take a shit, drop a deuce, pinch a loaf)

Origin: a 4 year-old boy once peered curiously into the murky depths on his first trip to an outhouse and exclaimed to his mother, "Someone dumped their hummus in there!"
Ugh! My stomach is rumbling. I think I need to dump the hummus.

That bathroom smells like someone dumped the hummus.