Knocking one out

A northern slang term for masturbation. To play with oneself, or toss oneself off.

"I'd love to come with you, but I'm in the middle of knocking one out"

Knocking one out by RichieLeBon March 22, 2012

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Related Words

Knocking one out • knocking one down • Knocking • knocking boots • knocking on the back door • Knocking on heaven's door • knocking boxes • knocking off • knocking shop • Knocking your tits