dayum 

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?!

dayum by Lou April 13, 2006

DAYUM 

what u IMMEDIATELY say when u turn around an theres a fat bitch right behind u an u get scared

guy - (turns around) "DAYUM!"
girl - "what nigga?"
guy - "nothing...."

DAYUM by ~Mimi~ May 4, 2008

Dayum 

Unbelievable. A great big suprise.

Somebody you have not seen in many years who is supposed to be living on the other side of the globe shows up at your door and you say: "Dayum! Where the hell have you been?"

Dayum by Jennifer Rose September 13, 2005

dayum 

a word that black kids (and white kids who copy everything black people say) use to sound like a over annunciated word of "damn." Usually used when somethings extremely exciting or calls for an out burst of "DAYUMMM" instead of just damn.

1.DAYUMMMMM tht gurll is fineee as heeellll.
2.DAYUM i just spilled muhh drinkk.

dayum by lalalyrrgaay December 22, 2008

Dayum 

The fifth level of fatness, as defined by Gabriel Iglesias.

There are six level of fatness:
- Big
- Healthy
- Husky
- Fluffy
- DAYUM
- Hell no!

Dayum by joveeno November 11, 2011

Dayum 

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!

Dayum by urbandictionaryisdon August 28, 2011

Dayum 

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

Dayum by Nemes October 8, 2010