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A hardcore sexual technique where pebbles, stones or other small elements are put into a females vagina (Or a mans anal cavity, depending on the sexuality of the partners. It is most commonly done with a female though.) to create a feeling of pain or roughness. A man then puts his penis inside of the object filled vagina and begins thrusting, giving both partners a feeling of both pleasure and pain. Other more pointier or even sharper objects have been used to incite even more pain. The name originates from the most popular thing to put inside of the vagina for this technique, gravel.
Kyle : "Yo! What were all these screams coming from your bedroom last night?"
Lenny : "I gave my girlfriend a Grevelo... It was fucking horrible..."
by GrayHeartGames June 01, 2019
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