Dummer was the guy who invented silent velcro. He gave people a modern and hassle free way to put on their clothes. He truly was all things to all men.
Wow, I feel like Bond when I put on my shoes !
Thank you Dummer!
by Bill Carradine November 24, 2006
Slang for the Hummer GM vehicle brand.
Look at the douchebag driving that Dummer. What rock did he crawl out from under?
by LuvDsun April 12, 2009
The nickname the Band director gives the percussion section after one or more members does something stupid, such as dropping a stick or mallet or doing something equally heinous.
Band Director: Dean, why didn't you play your drum solo?
Dean: I dropped my sticks.
Band Director: You dummer! How do you expect us to win if you're Mr. Butterfingers?
by bandbunny27 April 28, 2007

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