whaddup 

conjunction of the phrase, "what is up?"

whaddup by ill bill December 23, 2002

Whaddup 

What people with immense amounts of swagger say when greeting people.

Guy: Whaddup

Girl: Oh my god he's got so much swagger *melts*

Whaddup by Swagger is a way of life October 27, 2011

Whaddup 

A mis-spoken version of "word up!" It is used to confirm or affirm something said in another sentence. Like approving of something another has said. Originated in Greenwich, CT by none other than Mr. Edward Larkin. It is now commonly used by Greenwich kids and laxers alike.

bro, im gonna go get some pork shu mai
WHADDUP!

Whaddup by fishpig1 August 2, 2011

Whaddup doe

another way of saying what's up, typically used in the Detroit area.

Hey, when you see him, tell him I said "Whaddup doe!"

Whaddup doe by wildfire98 April 6, 2010

Whaddup I'm Jared I'm 19 and I never fucking learned how to read 

Whaddup I'm Jared I'm 19 and I never fucking learned how to read is a vine reference used by nostalgic people who miss vine

"Hey could you read page 21 for the class?"
"No I can not WHADDUP I'M JARED I'M 19 AND I NEVER FUCKING LEARNED HOW TO READ

Whaddup I'm Jared I'm 19 and I never fucking learned how to read by Kirbylove May 6, 2018

Whaddup Bum 

1.used in song "whaddup bum" by the greatest rapper ever to come out of ohio- Chip The Ripper,
to say hello my dear friend what is up?

2. What the fucks up bro?

Slab niggas make the hoes go dumb gettin hella change so we call eachother bum.

I said whaddup bum to my nigga cudi

Whaddup Bum by anrkyintheUK017 March 4, 2010

whaddup crack 

a form of greeting used to address somebody

similar to "Hello friend."

The door opened and to my amazement it was Ellis.

"Yo, whaddup crack? How ya been, mate?" Ellis quickly asked.

whaddup crack by cjracer20 February 24, 2009