A very attractive girl or woman with whom you wish to have sex. Specifically, she inspires the desire to mount or "ride her".
Oh man, she's a Reider.
by middkidd January 19, 2010
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A guy from Canada who can't keep it in his pants. His on-line alias is Cloud Reider.
"Casual cyber-sex is goooooooood..."
by Mr. Bird February 22, 2005
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