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The sex act of double fisting your partner’s anus.
Person 1: Last night, my boyfriend totally Jamasie’d me! Oh my gosh, my butthole has never been stretched that goddamn far! But I loved it ;)
Person 1: I want you to cum in my mouth and then give me The Jamasie ;)
by Thats_funny__69 August 03, 2018
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