Top Definition
The smacking together of male scrotums during sex.
"I could've sworn I heard The Swinging Pendulums coming from my upstairs neighbors apartment, but I could be wrong."
"Do you think gay guys are sorry for us that we can't do The Swinging Pendulums because I don't have testicles?" "Nah, your over-sized labia lips do just fine, Brenda."
by RoyCoup November 22, 2012
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