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In the event of a dry spell, having intercourse with someone you would not normally consider attractive, i.e. having sex with someone ugly simply since you are stuck in a rut.
bro #1:"dude, she's not that cute, but I'd totally rut fuck her."

bro #2:"bro, you did rut fuck her!"

bro #1: "that was one time!!!"
by thatwasonetime December 11, 2011
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