dude1: my girl put out such a stanky nasty fog horn last night dude2: ohhhh thats sooo grosss
fog horn is when you are doing your woman in the ass and she farts and it sounds like a fog horn
"dude1: my girl put out such a stanky nasty fog horn last night dude2: ohhhh thats sooo grosss" What is the definition of "fog horn"?