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9.
Someone who jacks off while really high in order to make their orgasm super awesome.
"Hey, where did Jerry go after we smoked that blunt?"
"Oh, he's in the bathroom. He's a Weed Wacker."
by BeauFIndley May 02, 2010
 
1.
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
 
2.
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
 
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
 
4.
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
 
5.
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
 
6.
Its a guy or girl that smokes weed and gets high, the masturbates.
Yo dude.
What??
I got so fucking stoned last night.
Oh Yeah?
Yeah yo. I got horny then i beat the meat.
Nice yo (:
Its called Weed Wacking in other words imma Weed Wacker!
by CubzLuva12 December 06, 2012
 
7.
Someone who masterbates while on marijuana
"Man I was a weedwacker last night"
by Jonathin Smith December 09, 2009