Up to high doh
In a state of great excitement or panic, like a note at the top of the scale.
Me mammy's up to high doh, de priest is comin' for his dinner.

Shall I translate it into posh English for you, boss?
Pleasure to see you, as always. Here it is in posh English.
My mother is in a state of extreme agitation. The priest is coming to dine.
Questions
What does up to high doh mean in Ireland?
In a state of great excitement or panic, like a note at the top of the scale.
How do you use up to high doh in a sentence?
“Me mammy's up to high doh, de priest is comin' for his dinner.”
Updated
On the list: Irish slang phrases