dah 

Dumb As Hell, an adjective describing someone who is beyond dumb

Boy, you dah (each letter said individually)
or
Boy, you dumb as hell

dah by Skrizzle April 28, 2006

Dah 

Extemely depressing or stupid.

Wow that kid is so dah.

Dah by SeanPCampbell23 December 16, 2008

Dah 

A thing

What is dah

Dah by Kentucky bourbon licker February 10, 2017

dah 

A substitute for words to a song that you don't know.

Dah Dah Dah Dah Dah! DAH DAH!!!

dah by Zwashere November 10, 2007

dah 

a lazy way of saying "dog" when referring to ones close friends or "homies."

sup dah?! eh dah. whass crackin tonight, dah? etc...

dah by demologik April 14, 2005

Dah 

A monosyllabic conversation starter, often used to initiate an instant message chat session.

Matt: Dah
Robert: Hey Matt, what's up?

Dah by averywj February 8, 2010

Dah 

Dah is 'done' in malay.

"Have you done your homework?" says mom
"Dah." I said

Dah by wodboii June 9, 2017