One of the biggest (white) lies anyone could say. The phrase can also be blended into a monosyllabic grunt so as to exert even less effort.
by SpecialCookies November 7, 2010
 Get the I'm finemug.
Get the I'm finemug. by J juicy  September 24, 2016
 Get the I'm on papersmug.
Get the I'm on papersmug. Fuck this shit. I'm out!
by Suuuuuup now September 9, 2018
 Get the I'm outmug.
Get the I'm outmug. by sloppytop March 20, 2017
 Get the i'm beatmug.
Get the i'm beatmug. a phrase that can be used in two ways
1). If you're on a winning roll in a game
2). You're literally on fire
1). If you're on a winning roll in a game
2). You're literally on fire
by Upstairsdragon February 13, 2014
 Get the I'm on firemug.
Get the I'm on firemug. Equivalent to the phrase "I'm up for it," but abbreviated. It's similar to saying "I'm down." Meaning you're interested in joining in on the activity suggested in conversation.
by JewForensicsGirl March 5, 2011
 Get the I'm Upmug.
Get the I'm Upmug. by playboy1031 June 20, 2016
 Get the i'm sleepymug.
Get the i'm sleepymug.