Tainted knuckles occur when you reach between your legs to wipe your ass after a shit and your knuckles touch the vile soup in the toilet bowl or,heaven forbid,the turd itself.
by wolfbait51 October 23, 2011
Get the tainted knuckles mug.Someone that shoves all their fingers into a females vagina, so that their knuckles are touching the taint...
by The Judge of the Northeast April 26, 2015
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