Where someone, specifically someone called Callum, nuts so hard that their leg cramps.
"Callums nutleg was extreme on the way to tesco."
by emojisrcool69 January 15, 2018
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when a guy gets a cramp in his leg while getting a blowjob, then he cums after the cramp goes
that guy totally had a nutleg i bet it hurt
by callum20352 January 15, 2018
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