Shitehawk

n.

Heard in Carlow, Cork, Wexford and Tipperary

A contemptible, unpopular or thoroughly disagreeable person. Sometimes pronounced 'shy-hawk'. See also 'quarehawk'.

In use

He's a shitehawk dat fella.

Posh English

That gentleman of one's acquaintance is a truly disagreeable stinker.

Same phrase, other counties