Top Definition
Lemmer:

–noun

1. an utterly foolish or senseless person.

2. Psychology . a person of the lowest order in a former classification of mental retardation, having a mental age of less than three years old and an intelligence quotient under 25.
Dont be a lemmer and help me out on this project
#dork #retard #moron #idiot #nerd #jerk
by work1113 April 04, 2011
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