Old Kennedy Cock Punch
(n) A deceptive maneuver, when one kneels, pretending to adjust the penny in his loafer, only to raise up and punch someone square in the cock.
Mike: "Oh shoot, my penny is falling out of my loafer..." (kneels to fix it)
Bill: "I hate it when that happens"
Mike: (Punching Bill in the cock) "Old Kennedy Cock Punch!"
Bill: "I hate it when that happens"
Mike: (Punching Bill in the cock) "Old Kennedy Cock Punch!"