A male to female sex swap.
During the sex change op the penis is sliced down the shaft.
by minges and all April 16, 2003
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Similar to the word "Fist" in that it is both Verb and Noun, "The Master Splinter" by definition is a maneuver that requires a thumb splint to be done properly.

To have done The Master Splinter properly, one must first cover the splint in hot melted margarine and then proceed to forcefully inject said thumb+splint into the rectal cavity of a man or woman. This should be done with a running start to gain optimal momentum so you can then, as the "splintee" persay dives away, carry him/her down a Minimum Seven Yards of Slip'N'Slide.

The Master Splinter does hurt the "splinted" and "splintee" greatly as to one having a broken thumb and the other being so surprised. Thus the requiring of the margarine.
Gavin: "Did you see The Master Splinter last night?"
Todd: "What? We didn't play Turtles in Time last night.."
Gavin: "Noo.. Callum got his splinted thumb into someone and carried them all the way down our giant Slip'N'Slide!"
Todd: "How'd he get that thing in there? There's no way it could fit!"
Gavin: "I think he used margarine.."
by Thaddeus_Jones March 1, 2010
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A sexual act preformed with chopsticks. You must insert a pair of chopsticks into the vagina or anus of your sexual partner open the hole and slide right in!
Hey baby, you ever tried The Master Splinter?
by Bic-a-boi June 17, 2018
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Doing something with stealth, which is usually dangerous, or difficult, and completed in a stylish manner. Derived from the popular videogame Splintercell, which is stealth based.
When I snuck out of school, I did it Splintercell style. I would tell you specifically, but it would compromise the mission and you would become a risk.
by NOT JACK TOMPSON LOL August 9, 2005
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A very painful process in which someone sticks a splinter down your penis and it gets stuck
My friend gave me urethral splinter torture
by Masterpotatoman February 3, 2016
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The art of sneaky around doing something dodgy.

Adapted from splinter cell popular video game
"I was total splinter cell styles as i crept out last night"
by LEM - Chino January 24, 2005
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A derogatory rebuff to someone who is constantly sitting on the fence.
Grow some balls and form an opinion or you'll get splinters.
by Rikstir February 4, 2014
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