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1.
An synonym for alcoholism based on the stereotype that the Irish are genetically predisposed to being alcoholics.
Seamus checked in to the Betty Ford clinic on account of the Irish virus.
by Biermann Z January 20, 2011
 
2.
a virus hoax from the mid 90s it asked the user pass this email to all their users in their contact list then to delete all their files
you caught the Irish virus
by gamer60634 March 11, 2011