1 definition by hayoitskayyo

The phrase "milk DUD" is a lesser known term for bro, because of bros pronunciation of the word "Dude". The bros are so over-whelmed with their broness, they feel the need to pronounce the word "Dude" like the word "Dud", we get "milk DUD" because it just sounds like it makes sense.
bro: CHEA DUD CHEAAAA, LET'S GO LONGBOARDING DUD.

you: that guy is a milk dud.
by hayoitskayyo April 4, 2010
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