Ur havin a a laugh

exp.

Heard in Waterford

An expression to ask some one if they are serious or to state ones opinion that a person has made an error or mistake while perfroming a task.

In use

A referee sends off a player... Ahh ref boy, Ur havin a laugh... sure he barely touched him!

Posh English

Ah referee you cannot be serious. Sure he barely touched the fellow.