The phenomenon of drinking an excessive amount of alcohol (grey goose in this case) and developing "flu-like" symptoms the next day.
Sal:Say, where was Jane at work today?
Rick:I dunno, says she has the swine flu, but sounds more like the Goose Flu!
Sal:Jane drinks too much!
by cptGRRR December 22, 2009
Get the Goose Flu mug.