When your mouth acts like a plunger on a girls vagina while you hum with your mouth.
Dude you have got to try this my girl loves it its called the plunge.
by ralph mayhem July 21, 2006
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Mark was caught plunging when Bill went to check out the strange sounds coming from the bathroom.
by sexyguitarstud October 4, 2012
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the act of stretching your boner through the back of your legs so it is right below the ass cheeks and then jack off while its behind you like a tail. this act when in motion looks like your plunging your anus. it may also be referred to as "fluffing your garfield."
(bill)I got rejected again tom.

(tom) ah man im sorry to hear that. would you like me to plunge you off?

(bill)no thanks,i'll hit up pang instead.
by tophieCC September 16, 2010
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Having Sex Without a Condom and Cumming Inside the Female, At Which Point You Continue On To The Point Of Creating a Plunging Noise
Craig Was Plunging The Shit Out of That Hoe And Couldn't Help Laughing
by Plunger2k6 May 29, 2011
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The act of plunging one's erect penis into applesauce, whether the applesauce belongs to the plunger, the plunger's friend/relative, or a complete stranger.
John had returned from the bathroom only to find his friend Tom plunging his applesauce. That bastard!
by The Ωmega June 22, 2010
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Messy and unkempt hair, more specifically, when one puts one's hair up in a ponytail the hair underneath said ponytail slackens and loosens, thus creating 'plunge'. Can be extended to any kind of loose, uncontrolled hair, such as is common when one takes off one's snug-fitting hat (e.g. beret, fisherman), and which is usually combed out to maintain an acceptable appearance.
1. "Look at the state of your hair, you've got so much plunge."
2. As soon as she took her hat off she had to sort out her plunge.
by cinmond April 9, 2006
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when a guy or girl sticks a plunger handle up his butt

past tense: plunged
dude: So one day i got really bored and i plunged myself
chick: oh thats gross, i'm leaving
by Rensh August 27, 2005
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