The sound emits when the ass has created a complete seal with the toilet seat and a fart is produced, vibrating through the toilet and makes a distinguished low-pitched sound, audible through walls and floors.
Planted comfortably in a stall in a restroom, Jim heard what could be non-other than a fart horn sounding from the stall two stalls down from him.
by cujo676 March 6, 2013
Get the Fart Hornmug. by DJ EV May 12, 2007
Get the butt horn fartmug.