drop off the cosbies Share definition Flag Slang for taking a shit. Shortened from "dropping off the cosbies at the pool". --> Dude, whats with the screwed up face? ---> Argh! Really need to drop off the cosbies man! drop off the cosbies by Dion_B June 3, 2006 0 0 Get merch Get the drop off the cosbies mug. Buy Now — $32.95 See more merch