Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.
Used when a smart person is momentarily dumb or forgetful. Pronounced(oondum)
You are such an undumb!
Undumb by !Unicornlover3402789 January 15, 2020
Related Words

uncumberbatchable 

Being so extremely unpopular and/or dislikable that even Benedict Cumberbatch could not make you a likable character in a movie.
Julien Assange is not a likeable man. Even Benedict Cumberbatch could not make him likeable. He is Uncumberbatchable.
uncumberbatchable by MBobbie March 31, 2018
To undo the effect of dubbed voices by restoring those used in the original language. Usually used in the context of video game modification.

This word may be used as a verb (process) or noun (product).
I played the undub version of that game because the english voices were terrible.
undub by just a traveller March 19, 2008
A word to describe someone who is dumber than a dumbdumb, as they don't have enough intelligence to add a 'd' or 'b'.
"That guy is such a dumbdumb."
"No! He's a umdumb!"
Umdumb by confinedtragedy September 8, 2007

unhumble opinion 

lily w.s, because all her ideas are relevant. because she is the best. god complex.
in my unhumble opinion becuause i am the best
unhumble opinion by nashinoodle October 19, 2021
Noun: 1. A person who uses UD posts for personal vengence, not realizing it makes them look pitiful. 2. A person who posts their own name on UD, not realizing it makes them look like someone you want to avoid at all costs.
That UDumber put the name of the girl who dumped him on. Has he lost his mind?
UDumber by magill March 22, 2008
More from Urban Dictionary

Plate of Brown 

A plate of brown consists of foods that have little to no nutritional value, and are typically deep fried. A true plate of brown will also be accompanied by a dark soda.
Wanna go to meal hall & grab a plate of brown?
Plate of Brown by Cheddar Craigson September 18, 2020
Word of the Day on October 22, 2026

Larpenomics

When finance content creators rent out fancy cars and flex cash to seem richer than they really are in order to promote and sell their “get rich quick” courses.
Andrew Tate has mastered the field of larpenomics
Larpenomics by Rbois09 October 21, 2026
Word of the Day on October 21, 2026

Palmela Handerson 

Your hand that you masturbate with.
Girlfriend: What are you going to do for the next week while I'm on holiday?

Boyfriend: Have a visit from Palmela Handerson of course!
Word of the Day on October 20, 2026
x:"Girl your fit chewed today!"
Chewed by iod1o March 30, 2022
Word of the Day on October 19, 2026

Blue Movie 

A pornographic film.

The use of the word "blue" to refer to sexually explicit content was first recorded in Scotland in 1824. "Blue" meant "lewd" because prostitutes dressed in blue gowns.
I found your stash of blue movies under your bed.
Blue Movie by Shayde79 January 20, 2011
Word of the Day on October 18, 2026
Load more