Wankers cramp

n.

Heard in Tipperary and Waterford

Tennis elbow or a sore arm, often with the humorous implication of excessive masturbation.

In use

I have a bit of a sore arm kevin, knowin' you james it's probably wankers cramp

Posh English

I have rather a tender arm, Kevin. Knowing you, James, it is probably the result of excessive solitary indulgence.

Same phrase, other counties