The sexual act of having someone take your own feces and smear it across your upper lip after violating you with rigorous anal sex, causing you to walk like Charlie Chaplin the next day. This will also result in a brown staining of the upper lip for the next 48 to 72 hours. The act is typically committed against other males while passed out drunk, and although common, not necessarily committed solely by fraternity brothers.
As Jon woke from his drunken stupor, he pulled up his boxers and waddled to the mirror, staring at his stained upper lip. He knew without doubt his roommate Greg had given him a Muddy Chaplin.
by Bullfrog productionz May 19, 2014

Where you willingly sit down and let someone shit on your head and let the shit gradually role down.
by Adam c January 9, 2015

by Indy Andy jones November 20, 2021

by GoodGirlGinger October 1, 2015

by Muddy P January 26, 2009

When eight men have anal sex, finish, and then simultaneously smack a girl in the face with their soft and sh*t-covered cocks.
by crudesexualpun October 6, 2013

by PERVERT FIREFIGHTER February 16, 2010
