Unknown disease that attacks the body’s digestive system resulting in uncontrollable Flatulence. In some instances flatulence can reach up to a 14 on the Flatulence shmisshomorshin scale which actually only ranges from 1-10. This disease is now know as the SLEACH, slang used “sleach fart”.
Damn!!!! That was one horrid sleach fart Justin.
by fire fly(2008) December 10, 2008
scumbag, slimy, dirtier than dirt and lazy, when "douchebag" is too much of a compliment
When a friend drinks all the beer, steals your cozie, pukes on the floor, passes out, and then is gone before clean up in the morning, he is a sleach.
by Aria Fugazi June 09, 2015