wank-neck

A debilitating pain or twinge in the neck and shoulders, resulting from excessive or violent masturbation. Usually the affliction of men in their mid-to-late-twenties, directly resulting from a 'dry-spell'.

Most mornings he woke up with wank-neck.

If he doesn't stop, he'll give himself chronic wank-neck.

Wank-neck is the disease of the under sexed.