In a sexual connotation, to cover one's fist in lubricant, insert fist into a partner's asshole, twist it around, and finally pull it out and have your partner lick it off.

Also known as Denny's Special Buttfast Slam / the Fist in my Hammy
"That chick was fuckin nuts. She tried to feed me a salamander icecream cone, good thing I smelled the shit before I licked it"
by 69dogggg96 April 25, 2012

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