Slang in American English - W

W

Wanna:
Want to.
Do you wanna play a game? 

Washed-up:
Passed the best days of your skills.
He should just retire; he’s all washed up.

Watch your back:

Be careful; Watch out. Used as a threat.

Watch your back. I heard he's really pissed off at you.

Weirdo:
Strange person. *fairly negative/rude*
Your boss is such a weirdo! 

Well-to-do:
Wealthy or rich.
Her family is well-to-do. That’s why she behaves like that. 
 

What's up?:
What is new?
Hey! I haven't seen you in a while. What's up?

Wheels (also see Ride):

Car. 
Awesome wheels dude!

Wimp:

A person who is weak or a coward
Your boyfriend is such a wimp! 

Windfall:
Unexpected money you get as a gift or prize, etc.
After his windfall from the lottery, he bought a new house. 

Wired:
Overly excited or hyper.
I can’t fall asleep right now. I’m so wired! 

Wishy-washy:
Uncertain.
He’s so wishy-washy about if he is prepared to get married. 

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