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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the wood splitter is a minnesota term that takes two guys havin sex with one girl one guy in the vagina and one guy in the anal
hey dude were goin to put a wood splitter on this chick tonight
by bw78 January 21, 2008
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