Top Definition
when a large amount of people gather to experiance a pleasurable feeling with one person of the opposite sex.
Dude, Teri,Erica,Rene,and miguel bust a train on eachother last night!!! It was sooooo awesome!!! I was like dude........WOW!!!!
by its me really May 04, 2006
taking turns banging a single chick
I head those guys wanted to bust a train on her.
by DrizzleMo June 25, 2012
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