2 definitions by robbie vienna

Top Definition
The ailment one suffers on March 18th after properlyly celebrating St. Patrick's Day. Anyone of Irish descent may also use the term to denote a hangover on any day of the year.
Seamus: Ugh, I was out drinking Guinness until the wee hours. I think I'll call in with the Irish Flu today.
by robbie vienna March 17, 2009

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The tendency of Irish men to be endowed like potatoes: shorter than average and very thick.
You should have seen Seamus with his pants down! The potato curse hit him hard!
by Robbie Vienna December 27, 2008

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