A girl that appears prim and proper until you get her in bed where she reveals her true insatiable craving for hot, wild, relentless sex.
"My last girlfriend went to a Catholic school but every night she threw me onto the bed and didn't stop for hours! She was a freak in the sheets!"
by Alorophasia777 May 3, 2008
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Giannis starts livestream on Instagram

Giannis: “Not only am I a freak on the courts, but I’m a freak in the sheets.”
Girlfriend: “ stoppp! Kids are watching.”
by XtremelyClutch January 14, 2020
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A man who is typically innocent or sweet natured when talking to women normally, but is immensely dominant in the bedroom.
"Jesus Christ", "what is it Christy ?" , "so I met this guy in the bar last night", "Oh?",

"and he was really nice and pretty good looking, he kept calling me beautiful and gave me a bunch of complements and suggested we should go to my place", "Mk?" "one thing lead to another, but then he started choking me and pulling my hair and shit", "wow", "and he even tied me down and spanked me", "talk about A Gentleman In The Streets But A Freak In The Sheets".
by Drunken Italian 442 December 19, 2021
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