Bullin

n.

Heard in Armagh, Louth, Waterford, Laois, Sligo, Leitrim, Kerry, Wexford and Down

Engaging in sexual activity or romping about.

In use

Are ye on for a bita bullin' down behind de hall later on?

Posh English

Are you inclined towards a spot of carnal activity behind the parish hall later on?

Same phrase, other counties