Heifer

n.

Heard in Waterford and Kerry

Unfavourable clandestine description of a woman of robust build, most likely in the environs of a public house and within sight of but for safety reasons, not within earshot of the subject.

In use

Hey sham, I don't like the looka your wan there on the dance floor, she's a right heifer hey

Posh English

I say, old chap, I rather disapprove of the look of that hefty lady upon the parquet, she is built upon a most substantial scale.

Same phrase, other counties