Auto-erotic stimulation of the anus with one or more fingers while driving a pickup truck. For a traditional, or "urSilfen," the same fingers should then be used to pick crusty boogers out of an extremely hairy nose and the fingernail(s) should be cleaned using an incisor tooth. Extra points for simultaneous perfomance with spouse.
"Don't look, honey, but I'll be gosh-darned if the odd looking fellow behind us in the Chevy isn't Silfening himself."
by Lt. Grover February 28, 2009
Get the Silfen mug.Auto-erotic stimulation of the anus while driving a pickup. For a traditional Silfen, the fingernails must be cleaned with the edge of an incisor tooth. Extra style points awarded if performed while stopped in traffic and for simultaneous performance with spouse.
by Lt. Grover January 31, 2009
Get the Silfen mug.by Dickbanger March 22, 2015
Get the ssilf mug.A girl who flirts with a lot of guys but will never sleep with any of them. A scife can also be a girl who continuously fucks guys over sexually.
She's a fuckin' scife
by P00PFEAST69 August 23, 2017
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by Blondeboobies87 May 20, 2018
Get the sdilf mug.Hey Jim, check out the whiskers on that small pink slightly curved sea dweller! A regular SILF and no mistake! High five!
by Roger McTodger November 16, 2004
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