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1.
A person who likes to masturbate in public, particularly on buses. They are usually creeps and may be a sex offender.
you know that guy that got caught masturbating on the bus? he's gonna be a bus bandit when he grows up!
by dashneo and wario kong May 11, 2011
 
2.
a group of people who get on a bus, not knowing where it goes, in hopes that it will take them to their destination. They often end up getting lost.
look at those bus bandits, they have no idea where they are going
by bbg89 March 28, 2011