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6.
You would use this interjection when you see a fine piece of ass. As this girl walks past you, you must lean back and exclaim this this phrase with impeccable timing. This is especially useful after watching a fine lady such as Danielle Conklin pass by.
DAYUM DConk! Since when were u so hot?!
by Lou March 02, 2006
 
8.
A word often interchangeable with the word damn. Used to convey extra damn-ness.
DAYUM GIRL! YOU GOT SOME HIDDEN STRENGTH!
by dj dz January 24, 2009
 
9.
the word "Damn" spoken in proper southern dialect
Day-um child, don chou know better than ta gitch yo ass caught by the po-lece?
by grkdaisy February 09, 2003
 
10.
The fifth level of fatness, as defined by Gabriel Iglesias.
There are six level of fatness:
- Big
- Healthy
- Husky
- Fluffy
- DAYUM
- Hell no!
by joveeno November 10, 2011
 
11.
extreme exclimation, suprise
Day-um girl you got a big ass!
by James/Danielle February 09, 2003
 
12.
An expression used when you see an extremely good looking person

A slang expression of the word "damn"

Commonly used when a male is describing a hot girl who may walk past
Dayummmm! Jamie is hot, his girlfriend Rachael is so lucky"

"Jamie is dayum fine!"

Rachaels ex boyfriend Matt is unlucky..she is dayuumm fine
by Nemes October 07, 2010
 
13.
It basically means the word 'Damn' but it's spelt how you would pronounce it.
*Hot girl walks past*

Guy: Dayum!

-----------------------

*Chatting on social networking site*

Guy1: Did you see 'So+so's' profile picture?

Guy2: Yeah!

Guy1: Dayum, she's hot!
by urbandictionaryisdon August 26, 2011
 
14.
an adjective to define a girl with crazy beauty.
that Melody is dayum fine.
by crazyeyesjunior January 26, 2011