A fan of a particular sports team who had no previous interest in the team until they began winning. They often will claim that they have been "a fan forever." You must discredit them on every statement they make.
Ever since the Anaheim Angels won the World Series their baseball park is full of phony-ass bandwagon fans. That's why I root for the Dodgers.
by Morgan1 June 16, 2005
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When one only likes or agrees with someone/something due to success. Even if said individual liked/agreed with something before they were successful, they "hopped on the bandwagon."

The most typical is the Yankees fan, many only like the Yankees due to success, however there are the few who were brought up that way.
Phillies Fan:"Yeah baby the Phillies in the World Series!"
Dodgers Fan:"Bandwagon asshole. The Dodgers have been in the playoffs almost every year and had no success, the Phillies get good out of nowhere and win the World Series."
P Fan:"Go bitch with the Mets Fan"
Mets Fan:"Haven't you put me through enough dick?"
by shcoome March 2, 2010
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In sports, someone who shamelessly cheers for a particular team not because he likes them or follows them faithfully, but only because that particular team is the "popular" choice or has been or is the top team in their specific sport recently. When that team which bandwagoners follow falls from grace, they gleefully jump on the next teams bandwagon and cheer for that team.
James Simmons is the BIGGEST bandwagoner in the history of bandwagoners because he likes every sports team know to man! How dumb.
by sox fanatic October 27, 2008
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When somebody puts up a facebook status, email or message of any kind and asks you either to send it on to others or repost it. Once you have done this you have successfully achieved bandwagonism! It is usually to spread awareness of some kind but actually does nothing whatsoever in order to help the cause. Only done by people with nothing more interesting to say and usually have no knowledge of the cause itself.
The NSPCC change your facebook profile picture to a cartoon for abused children campaign. Lots of people were guilty of bandwagonism.
by Sickoffacebook December 7, 2010
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when a person likes a trend, or sports team, just because it is getting more popular.
Mike: 12 months ago: dang son the hawks freakin suck.
Mike: 12 minutes ago: how bout them hawks?
John: BANDWAGON!
by SnookTheBe(a)sT December 14, 2008
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What people will "ride" or get on when they want to be accepted, espescially in the NFL. People will get on the (Colts) bandwagon and suddenly become their fans because they are doing really good or because they have a large number of fans so they can be accepted.

People will ride a bandwagon even if they dont give a shit about football or whatever the bandwagon is.
This kid at my school wears a Cincinnati Bengals shirt to school when he is a Denver fan.
Me yells:BANDWAGON!

Girls who don't care about football chant: who dey! who dey! who dey! who dey!
by Slash of Guns N Roses January 8, 2006
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Joining a popular trend because you don't want to be an individual thinker
Dave: I love these fidget spinners , you can do tricks with them it's so cool!
Johnny: Bandwagon!
by JFK Shot First May 29, 2017
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