Unmerciful
Unmerciful is Irish slang used to stress how big or bad something was.
I'm dyin' today, I was on an unmerciful hoor of a session last night.

Good evening. Would you like me to translate 'Unmerciful' in use for you?
I am feeling positively dreadful today; I partook in the most merciless drinking session last evening.
Any good?
Questions
What does unmerciful mean in Ireland?
Used to stress how big or bad something was.
How do you use unmerciful in a sentence?
“I'm dyin' today, I was on an unmerciful hoor of a session last night.”
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