When your girlfriend gets spunk all over her knuckles after wanking you off and threatens you in a comical manner with the "spunk knuckle duster".
Girlfriend to boyfriend after wanking him off *she brandishes fist* "I'll punch your face in with my spunk knuckle duster you minger!"
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A sex position in which you double fist a woman with your wrists together, while squatting over her and slamming your hands inside the woman's cooch like an oil well.
Sex isn't the same with my wife anymore since she let me whip out the Ukrainian knuckle duster
When you beat the living shit out of your wife and kids while fucking your cousin in her husbands trailer.
That was the best Tennessee knuckle duster I ever gave. (Sips moonshine)
it involves bits of metal and leather belt that you fist the other person with it 6 inches deep any deeper they will bleed out there is the mad max version which is the belt and metal and "the grey" version which
is glass instead of metal Also known as the second cherry popper
man last night I gave a 6 inch knuckle duster to my girlfriend she got sent to the E.R. but it was worth it
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The act of lubing your toe knuckle and shoving it up a women’s vagina
Tracy: After that Canadian knuckle duster Dave gave me I was seeing god
When you take a pile of shit and your hand brushes the top of it while wiping
I took a massive shit yesterday, it was a real knuckle duster
I'm washing my hands, dusted those knuckles pretty good just now