Craic Vacuum

An Irish expression, used to define a person who is not fun to be around. Can be used either to describe a person who is dull or someone who makes everything about them.

Person 1: Good night last night?

Person 2: It was going fine till Gerry turned up, he's a real craic vacuum lately

Person 1: Spent the whole night talking about his divorce?

Person 2: It's almost as if you were there....