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When 3 men - or women with penises - all lie down and suck or jerk each-others cocks in a circle-like position. The natural evolution of a 69.
"That party was wild!"
'What happened?'
"We got so high, we ended up giving each-other the 3-man handshake!"
'Bro, that's some crazy shit.'
by SwAgMaStEr69 May 26, 2018
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