Dummy-up 

To make like a dummy - to SHUT UP!

"If the cops come around just dummy up."

Dummy-up by El Loudo February 10, 2005

dummy spitter 

adult who gets angry over chldish things and over reacts, much like a baby when its toys are taken away.

a dummy is also called a pacifier that is placed in a babies mouth. when it wants to scream it spits the dummy out.

i beat him at that computer games he says hes good on. he went mental what a dummy spitter.

did he get angry?

he really spat the dummy

dummy spitter by Drexxus March 7, 2008

dummy rocks 

Fake crack cocaine. Any white powder substituted for cocaine to dupe buyers.

That shit aint real, mofo sold me dummy rocks

dummy rocks by Arsalan January 24, 2003

dummy bitch 

The worst kind of female that makes no sense, runs her mouth and thinks she knows everything but is actually a dummy

I hate that dummy bitch at work always tryin to tell me how to do my job and dumb as shit don't know what the fuck she's talkin about

dummy bitch by godchef May 28, 2010

dummy stupid

The expression you use when saying stupid isn't enough, but you don't wanna call them the "R" word.

Damn marc you dummy stupid for that. Smhing my head.

dummy stupid by Some dude who owns a meme page September 10, 2018

dummy up

verb: to recommend to someone to keep quiet before they end up saying or doing something to prove their stupidity. The person often thinks they are undoudtedly correct. Often what they are saying refers to someone in their presence that they are unaware the story effects.

person 1: Hey, did you here that Joe got busted at Macy's ? (Joe's mom is right behind person 1 and overhears this story)

person 2 : Dude, why don't you dummy up !!

person 1 : Huh?

dummy up by ChrisL6464 April 10, 2010

dummy freight 

additional "freight" charge added to the bill for goods or services by an unscrupulous businessman or retail worker. For a "normal" or regular customer this charge would not be applied. However the person charged for dummy freight would appear to be of much lower than average IQ. Similar to asshole tax.

Boy the boss is going to happy with me! I just hit the last two customers for dummy freight. I'm going to get a raise!

worker :"That will be 100 dollars sir and then you have your dummy freight which brings your bill to $120."

customer: "Duh. OK."

dummy freight by slipsheet April 25, 2006