Bad dose

n.

Heard in Galway, Meath, Kilkenny and Cork

A severe bout of illness, often self-inflicted through excess.

In use

Jaysus I ave a bad dose after last night I must ave drank 40 pints

Posh English

Good heavens, I am in a most dreadful state this morning after last night. I must have consumed forty pints.

Same phrase, other counties