Top Definition
A word that means 'crazy', as in weird, different from others, silly or funny.
1. You are so wacky!
2. Have you heard of that wacky website?
by Nanda June 29, 2006

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behaving in a silly or random way in order to appear funny.
'get married sideways'
'cheese moneky spaceman apricot!'
'i'm random!!'
by daveyp May 26, 2005

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A word to describe a person or situation that is highly out of the ordinary or funny.
Man, that girl Michelle is so Wacky.
by IliketheMovieTheater October 02, 2011

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The act of smoking marijuana in addition to taking adderall, (or another ADD medication.)
Hey man, I picked up a sack today! Let's get wacky before we hit up that party!
by Glory801 November 19, 2010

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An unidentified sexual act.

"I'm not sure what's happening, but i'm pretty sure it's sexual"
"Some people and getting wacky in the ball pit"
"That's fucked up"
by Paella420 December 02, 2016

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Courtney Love. Especially on David Letterman, March 17, 2004.
Courtney Love: Am I wacky?
Letterman: Are you wacky?
Love: Yeah, but is that illegal?
Letteman: No, but its not a good idea.
by yam March 18, 2004

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1. To jerk off delightfully.
1. "Why are you tired? Did you already wacky?"

2. "I wackied before the big game to reduce stress."

3. "Are you nervous?" "No, I already wackied."

4. "Stop sending me links to Big Tit Nurses 3! I already wackied!!!"
by TRONJAM August 17, 2009

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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