Definitions by Caesar Anonymous IV

Sperm whack

The act of hitting an ejaculating penis upon an object or person. Usually by a man upon a woman.

Walter gave Mary a sperm whack between her cleavage.

To hit an ejaculating penis upon an object or person. Usually done by a man upon a woman.

Steve sperm whacked Donna.

Terri was sperm whacking Lisa with Roger's pud.