(n.) A little-known-of shank made from a dried-out, hardened, and sharpened piece of human feces usually used in prison as a means of defense or attack.
1. Yo, I heard TK got out of da clink early because some dude stuck 'em in the leg wit a poop shank and he caught a bad staph infection.
2. - Yo, you hear about Ravo?
- Nah.
Dude was hittin' the joint late night and some dude stuck 'em wit a poop shank right when he was gettin' 4 all da way.
When (typically after a heavy night of binge drinking) dumps a cannister full of holiday popcorn into the toilet and finds themselves tickled by the muse of pooping on popcorn. This may or may not be followed by taking a photograph of the poop on popcorn for posterity and to make your girlfriend/wife vomit on the spot.
Duncan was certainly drunk when he dumped a huge can of popcorn into the toilet and pooed on it. I always wondered what poop on popcorn would look like, and now I know.