Top definition
Someone who smokes marijuana and masturbates, often at the same time.
Scott: Today i met this guy in rehab. He told me about that he's addicted to pot and jacking off.

Eli: Oh, so he's a Weed Wacker?
by TheBigSTD August 11, 2010
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2
Weed Wacker: when a male's erected penis continuously slaps a woman on her knees across the face during sex.

The male with his erected penis will rotate his hips to the left and right at a constant motion slapping the woman across the face.
Man: Oh baby, ready for the weed wacker?!
The Girlfriend: Yay! I've been waiting a long time for this!

Bill: Ow... My penis hurts from the weed wacker...
Jim: What did you do?
Bill: Don't worry about it.
by myballshurtalot March 09, 2010
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3
One who chronically masturbates while high on marijuana.
Don is such a weed wacker! All he ever does is smoke weed and masturbate!
by RobertPaulson February 01, 2008
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4
Yes you guessed it! A weedwacker is a stoner or a user of weed.
I work out with Brice, even though I know he hangs with the weedwackers.
by MysticPizza January 10, 2006
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5
Someone who masterbates while on marijuana
by Jonathin Smith December 09, 2009
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6
One who masturbates like a ferocious lioness after they smoke weed.
Dealer: "This shit will get you just high enough to have the energy to be a weedwacker, man."
Lioness: "GRAWR!!"
by NuggBugg July 28, 2010
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7
The hairy man version of a helicopter. When a man swing his dick around in a circle through his massive bush, and makes weed wacker noises.
Did you see how drunk Scott was last night? He gave everyone a weed wacker demonstration, for free!
by steeretchy April 06, 2015
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