Penetration Circle

this occurs when there is a three-some between three males. They all circle up and fuck each other in the ass. :)
I just experienced a penetration circle. OOOOOOOOOOOOOOOOOOOSHIT
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BRAINAL PENETRATION

When you find someone incredibly intellectually stimulating and you want them to penetrate your mind further or you wish to penetrate theirs.

Completely intellectual attraction, without physical or emotional attraction. A desire to be mentally close to someone.
The opposite of to wanting to pick your brain ie wanting to have your brain picked
"I met this guy the other day, he's not my type, but the converation is amazing, he really understands me... It's like we were having brainal penetration."
by Moo Lavaca October 26, 2010
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deca-penetration

Penetration by 10 similar objects at any given time simultaneously. See also decaphilia.
Dag yo! Did you hear Julie got deca-penetration ? She totally got annihilated by 10 garden hoses last night, shit was whack!
by Pump House March 26, 2008
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Penetrating the circle

The act of being able to speak with the hot chick, if only for a fleeting moment, before her lame, fat, nasty friends that she came with realize you are there and launch a counter attack in order to get rid of you.
We wished Chris luck as he tried his hand at penetrating the circle. He stood in the shadows for some time, and just as 3 of the fat, nasty whore friends of the hot blonde broke off to swap clothes or change their tampons in the bathroom, he struck. He was able to have a conversation with the gorgeous woman for just under 30 seconds before another fat whore friend of hers, who was returning from the bar, saw what was happening and drug her away.
by Dasspam November 08, 2009
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penetration station

i'm gonna tongue punch her fart box in the penetration station
by pepperonipony July 21, 2010
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