A smelly dust like substance that forms on the back of your jeans/pants. This is caused from a deadly combination of going commando and not changing your pants for 10+ days. This is also known as stink butt, stinky pants and stink junk.
by euroJuice May 18, 2008
Get the Dust-Buttmug. A powder butt is a person who sits on his butt and his/her butt gets soggy and when it dries it feels powdery
by Mtsul May 29, 2010
Get the Powder-buttmug. by Room 112 March 16, 2009
Get the Soft Buttmug. by 4 String Thing December 25, 2012
Get the Dragon Buttmug. After engaging in anal with a female using a condom, pull out but leave the condom in the anus. You then tell her to go take a shit. The shit comes out into the condom like "casing" sausage. Hence "Butt Sausage"
by Spacehead333 September 8, 2015
Get the Butt Sausagemug. by Dr. Yan August 23, 2011
Get the ripping buttsmug. 