The slogan for the popular Boston based online blog Barstoolsports.com. Made popular by the sites followers, "stoolies" either taking pictures of themselves holding a sign with the slogan in foreign countries, at famous landmarks, in various US cities, or holding up a sign behind newscasters at sporting events.
Ex1:Hey prez love the blog. Viva La Stool.

Ex2: Guy 1: Hey bro did you see that guy holding the Viva La Stool sign behind John Kruk at the Sox last night?
Guy 2: Yea dude, El Prez is taking over the world!
by Stoolie4Life April 11, 2011
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