Inserting cocaine in your sexual partners anus, and sniffing up all the cocaine after the partner farts it out.
Guy 1: Dude this girl is into Jack Frostings.
Guy 2: Legit.
by ReptaRRwaR September 26, 2010
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A rarely used masterbation technique where one apply's toothpaste to their chosen masterbation hand, creating a "hot-on-cold" effect.
Angus: This weathers been so hot, I've been giving myself Jack Frost's all summer!
Sam: That's disgusting mate.
by Savemebarry August 17, 2013
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A hand job given when the girl's hand is ice cold.
It was 20 degrees out but she still gave me a Jack Frost on that park bench.
by kayjay1 January 8, 2010
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When you freeze a bottle of lube and then use it to briskly stroke your shaft. Bonus points if you are sitting on the edge of a chair with your testicles hanging over a lit tea light candle on the floor. (Chestnuts roasting on an open fire)
Hey Dave, I dropped my bottle of KY Jelly in a snow bank and when I found it I gave myself a Jack Frost.
by Network Pathogen February 11, 2021
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some dank ass buds that have white leaves and red/orange hairs

a strand of really good weed that is named for the color of the nugs
stoner 1: "dude, is that jack frost, or just straight krippie?"

stoner 2: "that firey frost shit man. but killa's slappin another $5 on a sack"
by abeck March 1, 2008
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ejaculating up a female's nose, then smacking said nose.
~Dude, what happened last night?
~I jack-frosted her man
~Yeah, awesome
by famguy619 February 16, 2011
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