When someone excretes from ones anus into ones hand and slaps an intended target with the accumulated substance.
by Big RM May 30, 2008
Get the Brown Slapmug. by Anna6457839685 June 1, 2005
Get the slap this clownmug. A vicious attack that can, if carried out correctly, be fatal. Usually a spontaneous reaction to an insult from a Slevboy. Said to originate from Communist Russia.
Slevboy: Whilst I was attempting to solve a trap for young players I received a Sewell Slap from that guy with the Sewell Cut.
by Mr. Anonymous February 10, 2004
Get the Sewell Slapmug. by SeriousCollector August 31, 2013
Get the Naan Slapmug. by George Gonnella August 6, 2006
Get the slap the skinmug. The act of slapping the calf muscle on the back of the leg in a very swift, painful manner. Best applied to any idiot wearing shorts on a cold day.
by Hollerin' Bobby April 18, 2008
Get the Calf Slapmug. 