(v.) The act committed by a woman during sex when the penis is too long for her to handle. Usually executed by the placing of her hands on his pelvis and either pushing away or creating a stopping point to prevent deeper penetration.
"I was trying to get deep inside of her while having sex, but she thru up the cock block dude." "She couldn't handle all this dick!"
A move executed by a female during sex to prevent full penetration because the male's cock is too big. The move is executed in almost any sexual position, by the female bringing her arms up, putting her hands on the males waist or thighs and pushing away with her fingers, resulting in the cock reversing its penetration and also preventing any further full thrusts by the male to achieve maximum depth.
"Sylvia had been talking a big game about wanting a man with a big cock, but once I started beat'n that pussy up...the cock block came up real quick!"