When someone diarreahs in someone else's mouth while wearing underwear, and the underwear filters the solid part of the feces. The resulting filtered liquid flowing through the underwear, and also the actual act, is called a French Drain.
by Chris311 December 20, 2006
It is when you pee into your partners mouth,and the remaining pee that flows out runs down their chest.
by joe 13 April 27, 2010
Billy Bob was going down on his sister, Debbie and gave her an Alabama French Drain. He came up with a black tongue!
by WhiteCollarPosse March 4, 2019