Taco poop occurs when the meat falls out of the bottom of your taco.

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.

Occurs after eating at taco bell or similar establishment. Also after eating homemade burritos. Poop will come out runny, explosively, and last but not least, it will smell like absolute dog fart. Smell will generally be similar to the food's smell when it went down, especially if said food was from taco bell.