Top definition
A mildly offensive term used to refer to someone acting in an idiotic or generally stupid way.

Used in Cork by students on College Road.

Derived originally from the term "retard"
- "For the tenth time, did you put out the recycling?"
- "Shit, no I forgot again!"
- "Tardinio."

"Tardinio numero uno" - The ultimate Tardinio

- "Lads, ye are without a doubt the biggest Tardinio's I have ever come across." - Gentlemen, ye are the most idiotic, stupid individuals that I have ever aquainted
by Tardinio numero uno January 11, 2010
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