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1) Another term for sex.

2) When a penis is inserted in a vagina.
by EssieHutch January 12, 2015
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
1. To put one objet inside of another object

a. When a man puts his penis β€œin” during sexual intercourse

Related
Penetrate Cock Thrust
Fabian: Insert It
Oliver: - Inserts (Insertion) Penis in Fabian -

Fabian: Ah ah ah ah aahhh
Fabian: Thrust Harder
Oliver: OH, This is what I’ve been waiting for, OHH
via giphy
by Guest1444 March 13, 2019
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