Any action, phrase, idea or otherwise that turns a man off. As a result, causing him to no longer be hard.
Guy 1: "I hear that Lena only likes to be a submissive."

Guy 2: "Ah.. well, that's a wood splitter."
by The Archendarrrggghhhkener December 10, 2020
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A piece of hair that partially covers a guy's pee hole, causing urine to go in two different directions.
Guy 1: Dude, why is there piss all around the toilet?

Guy 2: Sorry bro, I had a beam splitter and it went everywhere.

Guy 1: I hate when that happens, but its still kind of cool.
by pot top November 2, 2012
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When you shit yourself and you g-string cuts it in half
Girl: You scared me so hard that it gave me a dirty splitter!
by UrbanCougar69 March 25, 2016
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women's pants (or underpants) that are so tight, they cause the same effect as "camel toe" (vagina lips are visually split apart through the fabric)
"She has some serious rail splitters on today"
by HSW1987 May 19, 2010
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Jennifer: oh my god I keep trying to talk to Kyle but Sara is being and ultimate Clit Splitter, she's all over him!
Julie: yea i know she's clit splitting you so hard...
by awesomechick2343 November 9, 2009
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Seat belts, when worn by fine women, accentuates their breasts.
Bro: Hey, Bud! I was at this stoplight and saw this awesome tit splitter in the car next to me.

Bud: Man, I gotta get me a lifted truck.
by Helibro October 3, 2009
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The result of the crotchal inseam of a man’s pants, usually jeans, in which the seam tightens while in a seated position, splitting the left and right testicles evenly, placing one on either side of the seam, leaving an obvious visual print of each of the separated testicles with a gap of 1/2”- 1” down the middle. This makes the appearance of two separate testicles, free to travel in their own separate direction free and independent of one another. A common issue with jeans such as Wrangler (Stranglers) and other cowboy type nut hugger cut pantelones.

If left untreated or unrelieved long enough, it may take several hours to days for the two testicles to reunite.
I like to buy my jeans so tight in the crotch, that they cause an immediately noticeable and impressive Siberian Splitter, just to let the ladies know I have testicular talent, upon first glance.
by P-Nut December 13, 2019
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