Top Definition
the act or action of being a dumbass within the presence of those who do not appreciate such behavior; a belief that donkey behavioral habits are polite in social meetings.
DA chat rooms ban members for dumbassism
by daft lackey April 12, 2005
1 more definition
A criminal offense in which a person acts like a dumbass.
Johhny was caught wanking in his car. He will be convicted of dumbassism.
by r-u-done April 12, 2005

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