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1.
a childish insult, generally used amoung 4-8 year olds meaning that the person is stupid
Keith is a willybum
by Rob D April 01, 2003
 
2.
Willybums : Home of great Game not unlike to space invaders... But we call it Bum invaders.
Oh my god willybums is just so damn good, and those games are great! That bluetooth guy is so sexy for hosting them! Oh My word!
by Raz April 09, 2003