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The act of shagging a women . Literally bashing her gash with your meat sword
I'm really going to shag my woman hard tonight-She's in for a good gash-bash !
by Bumloudson Tepong January 15, 2007
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When two women have sexual stimulation by rubbing and grinding their genitalia together.
The two lesbians like to gash bash} in public washroom stalls.
by drbigdaddygee March 11, 2010
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1. A porn movie.
2. Somewhat the opposite of "Sausage Fest", A party or social gathering consisting entirely or almost entirely of women. Sometimes by design.
"Awesome gash bash, did you bring the strap-ons?"
by Cragg October 12, 2006
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A party where loads of men come along to shag women (usually hired prostitutes) in a huge gang-bang style orgy.
"Hey did you go to that gash bash last night? I heard Ricky caught something from that leggy blonde."
by Rankles March 02, 2009
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