Taint Knife: A knife that is small in stature, so as to be used to stab taint. Best used in defensive situations when fighting for ones life.
"Dude, Bill's girlfriend stabbed him in the taint with her Benchmade 756 taint knife"

"I carry a taint knife for the sole fact that it's degrading as hell to bleed out from your taint"
by Stinky Polak Taint June 29, 2018
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