A mix of Trainwreck and Shit Show. Someone who finds it necessary to tell everyone how Hot they are in hopes that everyone will actually believe them. Trainshows are those who think everyone wants to fuck them at all times but in reality everyone finds them absolutely repulsive. Trainshows can be found wearing clothes that are a couple sizes to small because it makes them feel like there jabba da hut body isnt so large. They are also a notch below the scum on the bottom of your shoe, and can be found propositioning and/or sucking the dick of a guy with no chin. Trainshows even make you throw up in your mouth a little.
"Dude, did you see that trainshow last night?! She was a fucking beast homie and you let her suck your cock!"
by Scoob1234 February 03, 2010
noun. A cross between a trainwreck and a fuckshow. Can be used to define a party full of whacked out tweakers or a person who takes to much junk or is an incredibly run down sack of shit.
The afterhours last night was a trainshow.
That stripper on meth at the afterhours was a complete trainshow.
by trikkidetroit August 29, 2009

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