A term used on reddit to describe a post or comment intentionally designed to illicit a large number of upvotes; often centered around a currently popular theme.
My dad died today, here is a picture of him with Neil deGrasse Tyson and me as a baby. All aboard the karma train! choo choo!
by Fugly Cupcake May 24, 2013
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Staggering into a train station and being just in time to catch the last train home.
I was smashed last night and there were no taxis but I got good train karma. Awesome.
by wylo December 22, 2007
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