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The act of penetrating both a woman’s anus and vagina with two fingers each, on the same hand. The hand should be held stiff and look like a curvedlive long and prosper” hand sign.
“Yo I did the fuckle knuckle on suzy last night”
“Doesn’t your hand hurt bro???”
“Yeah but the carpal tunnel is worth it”
by DecafCyanide December 06, 2017
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