Ill cut rashers off youre arse

exp.

Heard in Tipperary

A colourful threat to administer a beating.

In use

Ill tellin ya now, ill cut rashers off youre arse if ya dont go into school now today..

Posh English

I am giving you fair warning now, I shall administer a sound thrashing to your posterior if you do not depart for academy this very morning.