beat the bishop
To manually stimulate the penis with the hand, typically until orgasm. To masturbate. So-called because the foreskin on the uncircumcized penis, when not retracted, is said to resemble a bishop's mitre.
Ma caught Jimbo last night, playing beat the bishop. She opened the door to say 'goodnight' just as he was jizzin' all over the quilt!
beat the bishop by Tummy AuGratin April 10, 2006
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