A last final emptying of the penile shaft, often resembling grain tumbling off the conveyor, resembles also the introduction to the TV series Land of the Lost, when the humans are tossed over a waterfall with some bad editing.
I was able to prop myself up to get a good sleestak, covering her landing strip with my UFOs.
by Pantaloon January 09, 2008

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Top Definition
a mythical creature from the Land of the Lost. These creatures are defined as being green in color, having large, black eyes, no fingers (thumbs and four fingers grouped as part of the hand), and webbed feet. They also emit a hissing sound when agitated. They are known to have evolved into a species that can communicate through speech. Enik was at talking version of a more evolved Sleestak Species.
Chaka was followed by the Sleestaks through the forest until a dinosaur scared the Sleestaks away.
by Brent Knox January 06, 2005

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A server at a restaurant like fast food that moves really slow is a sleestak
A Order taker At McDonald's is a sleestak
by Kramelamer June 30, 2013

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Derived from the mythical characters from "Land of the Lost". It has evolved into a type of defensive posture used in playing basketball.
He drove the lane and dunked on the whole team. They stood there playing defense like a bunch of sleestaks.
by Brent Knox January 06, 2005

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A person who inflicts self-harm on themselves.
"she's a sleestak, see the scratches on her arm?
by Nateesha October 28, 2006

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