The gluteus maximus of Gaster from the game undertale . used as a joke to express sexual attraction towards the character.
by songtune May 20, 2016
Get the Gaster Asster mug.I came up with this in the late '80's to describe someone who kicks ass. We were always like "man that is kick-ass." Then we progressed to "man you kick-asser!"
by docpete November 23, 2007
Get the kick-asser mug."You guys are the biggest assers."
by Bob Lush March 9, 2003
Get the asser mug.by fizgig April 7, 2003
Get the assterbate mug.by Jacob Shuttleworth November 27, 2007
Get the bad-assery mug.Asston is an assberger.
by A_Sure_Scientist June 1, 2010
Get the assberger mug.by chunihan February 14, 2013
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