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A cigarette dipped in formaldehyde. Smoking a stick of woo causes the user to become very warm, creating a desire to strip away clothing.
Chris and Ryan smoked a stick of woo, then streaked through Borders bookstore.
by Sluggo Skin October 26, 2006
A shortened version of WOO HOO! to show that you are excited
"WOO! I got an "A" on my math test! YEAH!"
by Alaina vanderpaardt March 27, 2008
to turn someone on/make you horny
"Does he woo you?"
by Nannerses & Sammykins August 26, 2003
verb informal
Slang for using or smoking marijuana. Originated from the suburban culture of Ventura County, CA.

noun informal
Marijuana, or marijuana products.
Yo man whats up, you wanna chill and woos?

Yo big g, you wanna sling me some of that dank woos?
by Literatedegenerate January 03, 2008
Half of woohoo
Usually used to denote a slight bit of enjoyment, or accolade. Sometimes used sarcastically.
I just reached L20! Woo!
by .thieved April 21, 2003
Afraid, scared, fearful of something or someone.
When it came to picking up the dead rat, Mrs Kimble was a woos.
by Robert Paul December 10, 2002
a korean name for a guy. woo will usually be referred to by his white friends as "woohoo" or "wootang" because white people are dumb and racist. Woo usually buys lots of clothes online and has hella swag. woo will listen to hiphop and smoke lots of dank weed but he still gets A+ grades like all asians. Woo looks better with a snapback on. woo is an azn sensazn. kimchi all the way
white friend: "ur name is woo? haha ima call you woohoo."

woo: "i get that from every single white person. u assholes."

white friend 2: "WOOTANG BRUH, you look as ballin' as ur brah kim jeong il"

woo: "i do ittt"
by topofthedome June 18, 2011