1. (n) A fetishistic oral consumer of bung butter, the mixture of lubricant and Santorum which is the result of anal sex. 2. (n) A much more creative pejorative term which may be substituted for the more common "cocksucker" or "asshole".
Noun. A synonym for male homosexual. Derived from the feelings of arousal one experiences in their posterior region in anticipation of anal stimulation or sex. These sensations are sometimes described in this or similar ways - "watching this Greco-Roman wrestling match sure is making my butt feel funny." Hence the term "funnybutt."
Each year, thousands of funnybutts gather in the streets of major urban areas to hold Gay Pride festivals.