who da 

1. A quicker way to say "Who the fuck is that?" or "Who's there?"

2. A sound of surprise and/or confusion

(originated by Bam Margera's father, Phil Margera, upon seeing alligators in his kitchen)

Friend 1: "I was talking to Jason Crisp the other day."

Friend 2: "Who da?"

who da by Crackbaby July 12, 2004

Who da 

A word that means police amonst Hispanic gang memeber. Specifically west coast hispanic gang members.

watch out who da nigga.

Who da by Samuel Vargas January 14, 2009

Who da man?!

The question yelled by a person who has just done something amazing. If anyone answers by yelling 'You da man!' then this person has succeeded at being awesome. However, if nobody answers then this person has failed.

"WHO DA MAN?!"
............
"...I am never saying that again."

Who da man?! by LeggyBerg December 16, 2011

Who da thunk it

Short-cutting "Who would have thought it" or "I cant believe it"

Person 1: "I got tickets to the concert"
Person 2: "Who da thunk it! You da man!"

Who da thunk it by Fåtß0¥ July 7, 2005

who da hewl 

Who the hell. Commonly used when you don't know who or what someone is talking about.

Cara: um suh did you hear about Rico's new tattoo?

Brandy: um who da hewl .

who da hewl by palmhouse August 16, 2010

who'da thunk 

A sarcastic expression that explains that everybody/somebody has already thought of that or has acquired that information already

"Lemons sting!"..."Well who'da thunk"

who'da thunk by forever.and.fucking.always March 17, 2015

Who Da Man 

Who da man?

question asking who is the man

"hey guys guess what i bought from Ebay? The Bucky O'Hare DVD!!, Who Da Man???" "Wow!!,you da man!!"

Who Da Man by piemaster August 5, 2004