Holliers
Holidays.
We're off on de holliers to Lanzarote, I'm bringin' a hundred tea bags.

Shall I translate it into posh English for you, segocia?
Top of the morning. Or is that too common? Here it is in posh English.
We depart upon our holidays for Lanzarote. I am taking one hundred tea bags.
Questions
What does holliers mean in Ireland?
Holidays.
How do you use holliers in a sentence?
“We're off on de holliers to Lanzarote, I'm bringin' a hundred tea bags.”
Updated
On the list: Irish slang words