1 definition by Brandon T. Johnson
To act like an assmarmont. To do things of an assmarmont nature. Up to and including any actions taken, that due to ones monumental stupidity have dire or emberassing results.
Steve put on a display of assmarmontry last night, he drank to much last night and fell off the balcony while trying to impress some chick.
by Brandon T. Johnson July 5, 2008