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When you use anal sex to get a girl moving sexually.
Becky was just laying there like a dead girl so I pulled it out and gave her an Ass Crank. She came to life then. We did it all night mostly with her on top. She came 8 times. A good ass cranking can get a girl started.
by Gearls October 28, 2008
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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
(n.)Asscrank-Device used to wind up the moron in front of you in traffic, so he will go faster. Can be used on
either him or his automobile.
Jimmy was driving the car in front of me, he was going
so slowly that my wife was threaten to get him moving with
the 4-way asscrank i had in the trunk.
by Danile R Cady June 29, 2006
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