It can mean anything you want it to mean.
It can be used as an ADJ, ADV, noun or verb
"whack out man"
"Whack out"
Whack out?
by Little Bites February 12, 2009
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Fucked up on drugs, completely.
Yo, you hit that. I'm already fuckin' whacked out.
by Rachel. March 22, 2005
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The word Commonly know to have began by the Hip Hop Duo "Siaki"

The Phrase Whacked Out
Is another form to Describe "I'm Bored"
Eazy: You feeling Whacked Out?
Brutal: Yeah let's go do something
by The One in a Million October 28, 2018
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Finn I diagnosed that horse with Whacked out poo brain five minutes ago!
by Kittybadger September 25, 2016
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no real gd reason for sayin it, tis just funny to say WHACK IT OUT!!

also really good when pwning noobs

(aims sniper rifle @ head and fires)
sniper:(shouting down the headset) WHACK IT OUT!!!!!lolololololololololol
(lol opitional)
by swertg July 11, 2008
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BOSS "Man the sales girls are hot"
SALES MANAGER "Don't whack one out in the office, there are cameras!"
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"Wow that Mischa Bartons so hot I cant look at her without wanting to whack one out"
by invalidrecord June 28, 2009
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