A person who starts to support a particular thing (sports, fashion, people, ect) simply because they are trendy or start gaining momentum.
kareem: let's go warriors!

Imran: what a bandwagoner you were rooting for the cavs in the finals last year

Kareem: I don't want to miss out on history.

Imran: that's what you said about Lebron ....

Kareem: CURREEEEYYY FOR THREE!
by Jibs July 3, 2016
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A fake fan. Wannabes who want to fit in with whatever's considered popular or hyped in order to gain attention and acceptance. They like something based on the majority of people's interests, not their own. Once that sports team or trend is no longer popular, they will follow whatever is currently considered "cool" or "popular".
bandwagoner: LAKERS ARE A JOKE! LETS GO HEAT!

Dan: Dude.. weren't you a Lakers fan just a few days ago?
by xxrickyxx May 23, 2012
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Someone who supports someone or something only because it is popular or successful.
Shaun: Let's go New York! #EverUpward

Liam: Don't you go for Los Angeles?

Shaun: Not this season, all in for New York!

Liam: What even are you... classic Bandwagoner.
by MattTASTIC! February 25, 2019
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To root for a different team every chance possible
You're a bandwagoner. Quit following lebron
by Treehunnid June 1, 2015
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Bandwagoner

# EURO 2016 seen influx of GAWA supporters due to improved performances of the Northern Ireland international soccer team similar to the increase in bandwagoners attending Ulster rugby games chanting stand up for the Ulster men claiming to have supported the team 40 years man & boy.

Original Block bookers (arch enemy of the Band wagoners) who have a huge chip on their shoulder having attending Windsor Park for decades without seeing a goal

#1st Woodvale GAWA Bandwagoners supporters club Established 2016 notable away trips booked through big mokos platinum tours France euro 2016, Rimini / San Marino 2017, Bratislava / Austria 2018, 2019 TBC

2018 seen another wave of fans jumping on the Glasgow Rangers F.C. bandwagon with fickle Man Utd supporters now claiming how they always loved Stevie G, haggis suppers & Vodka / IRN BRU

Berlin teddy bear loyal established 2018 notable bus stewards Bassy Sheridan, big cowley & big James savage
The woodvale bandwagoner GAWA 40 years man & boy
by Big Moko October 26, 2018
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Every fan who still has a team left in the Superbowl.
Y'all bunch of bandwagoners. We stay loyal to the Cowboys no matter how much they suck, see look at all my rings.

Y'all bunch of bandwagoners. We stay loyal to the Redskins no matter how much they suck, see look at all my rings.
by Nekkidbeerman January 27, 2015
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