It's when you wipe your ass from back to front while brushing the shit filled toilet paper against your nut sack. This will leave a decent amount of feces on your sack and in your ball hair. You then proceed to find a nasty whore that doesn't mind having a shit smeared ball sack dunked in her filthy mouth. "hence a nutter butter tea bag".
Shit on ball sack, dunked in a mouth. "Nutter butter tea bag"
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