Lickarse

n.

Heard in Dublin and Waterford

A sycophant. A person who constantly tries to ingratiate themselves to another person by perfuse compliments and 'sucking up'

In use

Here you, you're only a bleedlin lickarse. Get outta here before I box the bleedin head off ye.

Posh English

Look here, you are nothing more than a bloody sycophant. Take your leave before I administer a thorough thrashing.

Same phrase, other counties