derr 

another word for duh. when someone says something idiotic, and you want to say "duh" in a much more sophisticated way, you should say "derr"

-is your mom hot?
- derr.

derr by Anonymous January 29, 2003

Derr 

pronounced: Duhr, or durr. a "derr" is a person with special needs, or a person who is acting idiotic.

"you're a derr", "look at that derr", "Derr"!!

Derr by Justin Martin November 6, 2006

derr 

A word used to infer the unintelligence of an individual, item or anything else when mocking them

derr I'm kate perry, i think that i have a massive bust
derr I'm legal system, I give criminals rights

derr by tehleetx0r August 17, 2009

Derr 

a stupid or weird and socially awkward person

stupid dumb weirdo socially awkward creeper

Alex is so pretty and popular, but that Lisa is just a Derr

Derr by vannyzane October 7, 2011

derr 

one who has strength, wisdom, and great physiqueness.

My boyfriend is such a Derr. =

derr by Haley the Great December 16, 2008

derr 

1/ A sound generally attributed to those with mental afflictions making more articulate use of oral communication impossible.

2/ A sound used to mock said people.

2/ "Derr, look at me! I'm stupid!"

derr by KNfLrPnKNsT October 29, 2005

derr 

a person who is acting stupid or being a dumbass. You can also use it instead of calling somebody stupid, a dumbass, bitch, etc.

Guy: You're a slut.
Girl: Well you're a derr.

derr by a pnaii July 20, 2006