Definitions by NxNW

Guano

adj. A person or thing that is insane, crazy, etc. Comes from the colloquial usage of bat shit, meaning the same thing. Guano is the Spanish word for bat droppings.

Person A: Holy shit did you see that guy mumbling to himself?

Person B: Yeah dude, he's guano for sure.

Guano by NxNW September 6, 2010