Boobcow Share definition Flag A fat, usually stupid girl with large, but unattractive breasts. Ms. Cokesondick from South Park is an extreme boobcow. I miss Mr. Garrison. Boobcow by Chimney Pimp May 13, 2010 0 0 Get merch Get the Boobcow mug. Buy Now — $32.95 See more merch