A face melting sexual position that can only be performed with an extraterestrial or a werewolf of some sort. Also referred to as a "Skin Tsunami"
Kevin: "Dude, I was totally rammin down this alien broad the other night. It was a regular Skin Tsunami!"

Randy: "In what position would one ram down an alien broad?"

Kevin: "When They Invade Style"
by chiefwally January 4, 2011
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A game invented for when you are incredibly bored and have no resources available to you to play a game (such as a ball). It involves two players which similtaniously have to invade each others personal space, such as waving their hands infront of the opponent's face or almost licking their necks.

The game is won by causing your opponent to flinch or deliberately move out of the way of your attacks. However, you can loose by touching them accidentaly.
John: Lets play Personal Space Invaders.
Mike: Yeah, alright.
by Trucast January 3, 2007
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Anyone at work who has no respect for your office space, usually a co-worker, who will "invade" your cubicle or any other office space without permission to "borrow" office supplies that they themselves have run out of, or they just want to snoop and say that they're looking for something that they've lost.
Joni: Hmmm, Troy isn't in his cubicle, let me see what he's up to so I can report it and feel like i'm doing something important.

Troy: "Excuse me, can I help you?"

Joni: "Oh, Troy, I didn't see you there." "I was just looking for something"

Troy: "Well, did you find it?"

Joni: "Ummm, no, I guess it isn't here." "It must be someplace else, see you later."

Troy: "That Joni is such an office space invader!"
by Jachzehn July 25, 2010
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The rare and abnormal act undertaken when a person who you have never previously had any aquaintance with, sits next to you in a situaiton when all of the other places to sit down are empty, like in a movie theatre or a bus.
Tom: "Hey man how was your movie?"
Craig: Man, it was shit i had to deal with a personal space invader the whole time!
by Red Cheeks Paul May 21, 2009
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The act of lodging a rusty crowbar into the anal cavity of another individual.
by Major ED February 13, 2010
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