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1.
an act of having sex and not becomming fully aware of the situation until midway through the act.


see also. sleep walking but don't relate the meanings too closely
"that bitch just strattled me in the middle of the night...i wake up, and find her bouncing up and down on my cock"

"omgz dude she sleep fucked the shit out of you"
by HatShapedHat May 03, 2005