1 definition by lil nem
Verb: to screw over, go back on your word, mess up, act stupid, say something retarded, piss some one off, be trippin on some one or basically do anythin that could make someone mad or think your stupid
Adjective: Someone who dummies up
Adjective: Someone who dummies up
Verb: That bitch just dummied the fuck up.
Adjective: You are soo dummy up right now.
That dude is DUMMY UP.
You dummy up asshole.
Adjective: You are soo dummy up right now.
That dude is DUMMY UP.
You dummy up asshole.
by lil nem May 26, 2006