when a friend is fucking a girl, 5 friends jump out of the nearst closet and invade as many holes as they can. ears, nose, bellybutton, and etc.
"we were waiting in the closet when, tony gave the sign and we all went in for the mars invasion"
by ellwood big wood May 9, 2010
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The practice of infiltrating the pockets of people around by placing your hand inside of them. This works well with chest pockets on dress and collar shirts.
I inserted my hand into his pocket, and he was upset, for his pocket had been invaded.
by Joshua Sanstrum April 25, 2005
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When 4chan "invaded" Tumblr.
And when I say invade, I really mean ass rape.
Because 4chan/Tumblr = OTP
It was really all just sexual tension.
NBD

rape devon's sweet ass invasion
11/14/10 was the 4chan invasion of Tumblr, but they ended up just having angry hate sex.
by TumblrFag November 14, 2010
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The take-over or domination of a party/club/house/young farmers party/country.

Often a planned event involving a large group of rowdy gash. Itinerarys are a plus but not a necessity...
'Pootang Clan invaded me'

'Wow, I went to an amazing party last night! There was a Pootang Invasion!'

by The Pooters April 8, 2009
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When several male partners of different nationalities all aim to have sex with the same woman, they must fight for the right to mate
Dude I had a rough night last night, I was involved in an Army Invasion and lost
by The Clitty Rat September 25, 2013
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When Yao Ming dunks on someone's face.
NBA player 1: "How'd you manage to break your face?"
NBA player 2: "Asian invasion."
by nuabudikae December 22, 2006
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in 2001 WWF(now called WWE) were at War with WCW/ECW. Invasion was the start of it at as the main event was the best 5 of WWF vs WCW/ECWs 5 best (the conetenders were WWFs Angle Stone Cold undertaker Kane and Jericho WCWs Rhyno Booker T Diamond Dallas Page and the Dudleys). the outcome of the match was very suprising as Stone Cold turned on WWE by breaking booker out of Angles Angle lock stunnered Angle and forced WCW/ECW to victory. But of course the story behind this was that WWF had brought ECW and WCW in 2001 as well
in 2001 WWF brought ECW and WCW thats why Ryhno, Booker, Mysterio and RVD are now WWE property
by Ben Geddes February 26, 2005
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