When you have a fart, that may or may not be uncontrollable and a little shit leaks out into your pants. Comes from the combo of Shit and Fart, SHit fART.
I was so embarrassed when I was out to the movies with my girlfriend after I sharted and she started to ask me what that shit smell was.
by SPSan August 2, 2017
Get the Shartmug. Gary: I went to fart last night and then shat the bed. What's on the go?
Bartholomew: Gary, that's a shart.
Gary: Whoa.
Bartholomew: Gary, that's a shart.
Gary: Whoa.
by Larseholepursuss January 5, 2021
Get the Shartmug. by Cryptic-Code265 August 6, 2014
Get the Shartmug. by Ja Rule, the real one. I SWEAR August 27, 2013
Get the Shartmug. by supdude1939758 May 31, 2017
Get the Shartmug. A shit-fart; farts which occur when the colon is filled with feces, causing horrifically smelling flatulence.
by Idroppedapbiology2011 December 9, 2011
Get the Shartmug. by ZACKOOO March 18, 2017
Get the Shartmug.