Top Definition
Laughing My Nerdy Butty Outloud

Nerd #1: Hey, man, how many Celsius is right now...

Nerd #2: lmnbo... hell, I have no clue...
by Yoshimaticz April 25, 2011
Laugh My Nigger Butt Off
LMNBO. Girl, that was so funny!
by Retnuh1 June 06, 2010

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