Sugar off
A polite stand in for f off, for mammies who won't curse.
Ah sugar off wit yerself, I'm not makin' ye another sandwich.

Shall I translate it into posh English for you, sham?
Ah, there you are, you rascal. Here it is in posh English.
Oh, do go away. I shall not prepare you another sandwich.
Questions
What does sugar off mean in Ireland?
A polite stand in for f off, for mammies who won't curse.
How do you use sugar off in a sentence?
“Ah sugar off wit yerself, I'm not makin' ye another sandwich.”
Updated
On the list: Irish slang phrases