Top Definition
A word that means the same thing as 'dumbass' but is used by people that don't want to be caught saying the real word in public/school.

Usually used to mention silently to a friend when someone who is not very bright makes a stupid mistake.
Idiot: "Uh, miss... why can't I see my feet?"

Joe and Fred: "D'mah..."
by Beastly Cock August 27, 2009
5 Words related to D'mah

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