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Slang for the Hummer GM vehicle brand.
Look at the douchebag driving that Dummer. What rock did he crawl out from under?
Dummer by LuvDsun April 12, 2009
doesn’t know much.
she was dummer than he was
Dummer by Aahajshhauausuaja November 21, 2018
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?
dummer by bandbunny27 May 11, 2007

Dummer Hummer 

used to comment on a stupid thing that has been done
Dummer Hummer by 2ndSite October 1, 2021

dummer nigga 

someone who believes double healing and teaming up on gens is a good idea
they also tend to believe Ghoul and Legion are similar killers in esence
they also cleanse all 5 dull totems to prevent noed
Person 1: *cleanses a dull totem while all his teammates are struggling and dying*
Person 2: "My nogger, if you believe doing that is a good idea than you are a dummer nigga"
dummer nigga by noggerknogger July 22, 2025

Mande Dummer 

A female who thrives on creating chaos and pain for others.

May cause bodily harm or mental breakdown.
Has been known to slander anyone that crosses her path.

A Mande Dummer is the definition of conniving and brutal. When you meet a Mande you will find charm and excitement as she is readily open to having premarital sex with you.

A Mande will then bombard you with lies upon lies of her victim lifestyle and once you have been sucked into her manipulative tactics, you will wish you had never been born.

A Mande will then use you and throw you away, creating more lies about you, only to make her self look better.

If you come across a Mande Dummer, run the other direction.
Mande Dummer

A female who thrives on creating chaos and pain for others.
Ex: My life was ruined the day I met Mande.

Has been known to slander anyone that crosses her path.
Ex: May cause bodily harm or mental breakdown.

That Mande sure thinks she is all that and a bag of chips.
Ex: When will I escape Mande?
Mande Dummer by Danielle Lauzon December 7, 2019
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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