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Ireland slang
Excellent, amazing, or very good.
Safe to use?
Usually safest with people who already understand the context.
Tone
Usually positive or approving in casual contexts.
Region
Ireland
Formality
Informal.
Context Decoder
Check what it means in context, how it sounds and whether it is safe to use.
Deadly means Excellent, amazing, or very good. It is best read as ireland slang associated with Ireland.
"Deadly" means Excellent, amazing, or very good. In Ireland, the nuance may be more specific.
Usually positive or approving in casual contexts.
Usually safest with people who already understand the context.
Context-dependent
Everything is fine; no problem.
A big win; significant success or positive outcome
Cool; carefree; with a relaxed and stylish attitude
Extremely good, delicious, or impressive â most often used about food
Delighted (with Dublin accent).
Well done or good job; an expression of approval.
Slang meanings vary by region, speaker, and context. Tell us if the meaning, tone, examples, or background should be updated.
SlangWatch entries are maintained by the SlangWatch Editorial Team using submitted examples, regional labels, tags, and ongoing reader corrections. We avoid claiming a precise origin or cultural pathway unless the entry has meaningful supporting data.