a machine with a metal pipe connecting your wee-wee tip to your rectum. So when the operator of the machine ejaculates, all the semen funnels into his asshole in the hope of making the operator pregnant.
Rick: "Did you know Steve had a baby even though he's a man?"
Nick: "Yeah I heard he used a nut-butt contraption to make that happen."
Rick: "Damn, well how about that."
by the all-knowing boof May 25, 2023
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