A term used by Dr. Farnsworth in Futurama, used to describe the act of sex, similar referances include 'horizontal monster mash' and 'the matress mambo. More funny than a real referance.
Yes, we played pelvic peaknuckle once.
by IMac Bunny Killer July 30, 2006
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this term came from an 80's movie before futurama even thought about it saying it yes its slang for sex
me and old boy/girl did the pelvic peaknuckle last night
by movie watcher March 27, 2010
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