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1)Inabilty to speak, Mute
2)Lacking intelligence, stupid
That deaf "dumb" and blind kid sure plays a mean pinball --The Who

I cant believe you would test to see if that wire is live with your tounge. Man your "Dumb".
by Jdlaxer April 30, 2007
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2
Someone who isn't smart.
see Stupid and dimwit
Im so dumb i had to look up dumb on urban dictionary to find out what it means.
Retards
by Edz April 05, 2004
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3
adv. extremely.
synonyms: mad, hella
Me: How long would it take to get from Co-op City to Fordham Road on the 12?
Young Minority NYers: Dumb long, yo.
by jennifer October 20, 2004
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6
adjective, usually follows go, ignorant and unprohibited; crazy, hyphee.
Im bout go dumb in this bitch, real talk, they better play that song.
by A.O. March 17, 2005
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