He has a face on him like a constipated bulldog lickin piss off a nettle!

exp.

Heard in Sligo

An extremely screwed up or pained facial expression.

In use

Jaysus if ya saw him! He had a face on him like a constipated bulldog lickin piss off a nettle!

Posh English

Good heavens if you had caught sight of him. His countenance resembled that of a severely constipated mastiff attempting to lap liquid from a stinging nettle.