Diddies

n.

Heard in Waterford, Cork, Tipperary and Limerick

The female mammary gland, diddy being the singular, diddies plural.

In use

Jaysis would ye look at the size of the diddies on dat fellas lack!

Posh English

Good heavens, would you inspect the magnanimity of the bosoms upon that gentleman's female companion!

Same phrase, other counties