Dry shite

n.

Heard in Dublin and Cork

A person utterly devoid of humour or wit.

In use

I told a joke to yer man over there and he just gave me a blank stare... he's a bleedin dry shite!

Posh English

I recounted a humorous anecdote to that fellow over there and he merely offered a blank stare. He is an exceptionally tedious individual.

Same phrase, other counties