the act of savagely attacking someone for no reason, ideally in a tag team mannor to generate the most pain for the person/rat being attacked.
Hugh: hey Tom fancy a pain train
Tom: ah how about rat boy?
Hugh: safe

*stalks prey*
insert: one bang
by PainTrain1 April 4, 2011
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A Group of men with abnormally large penis, get together and tear each others asses.
Man, Justin Timberlake took it like no tomorrow, hes going to walk funny for a week.
by Curt Mac March 12, 2005
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A person who is feeling or who will be in an immense amount of pain. A somatic sensation of acute discomfort.
-Hey dude I just heard that Clay put Icy Hot on his ball sac, he's gonna be riding the pain train in a few minutes.
-Haha what a dumbass.
by C-Russ67 April 29, 2010
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A group of men that will visit those who do not repay loans as agreed upon
A group of men (Pain Train) that will visit buz when he skips out on his debts
by Robert Swanson April 29, 2009
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what every league of legends player thinks and hears when a mech zero sion uses his ultimate ability

and or a shitty friend
by azirisnotatrahschamp December 29, 2016
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What is heard by one about to sustain a serious beating...said by the conductor of the ass whooping
by mr.snruB September 7, 2010
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When you feel the ground shaking better step to the left.
HERE COMES THE PAIN TRAIN
HERE COMES THE PAIN TRAIN
HERE COMES THE PAIN TRAIN
HERE COMES THE PAIN TRAIN
by Sosku10 August 9, 2021
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