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1.
A bandwagonist is someone who mindlessly goes along with an action or idea, without any real reason other than other people are doing it.
A prime example of Bandwagonists are Facebook politicans around the time of an election. They don't know why they hate David Cameron, they just do because the other people's statuses say so, and feel the urge to post similar statuses to be involved.
by Poison System X May 13, 2010