A socially incompetent and borderline-creepy male virgin over the age of 23 who wears kakis/jeans with running shoes and probably still plays with trains.
"Do you see that dude staring at me awkwardly over in the corner? Ugh, what a train boy. He's sooo below my league."
by boob-dylan May 18, 2017
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A person who shares the inherent interior essence of a locomotive engine and has a propensity for sporadic social tea drinking rituals, often leading to unforseen adventures with a stranger. Can be dangerous.
Never talk to strangers, especially not a Random Train Boy.
by RTG July 28, 2003
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The quintessential black or otherwise non-white female for any white boy looking to branch out into interracial sex. Not necessarily relationships, but she'll more than willingly go for that too. This is also one of the most annoying bitches you will ever meet because just like how a vegan tells you they're vegan without you ever even asking, this girl is constantly going to be talking about stiff, white, penises. She's dtf any guy who's white, just cuz he's white. These bitches may seem rare, but they exist and they will get on your last damn nerve if you spend enough time with them and are anyone other than a white male looking for some quick and easy non white pussy. It's not even just as simple as a racial preference like you're tryna date this chick but then she just lets you know she'd rather bang white guys. This is the type of chick who always talks about them. The. Name. Is. On. The. Package.
Look at that fine set of white boy training wheels over there. What a damn shame 4 out of 4 quarters of their brains are devoted to dick. More specifically white dick, but it'd be a damn shame anyway.
by Muthalovinfishnipples99 January 10, 2018
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It’s a term you call a guy when he is your soul mate but he is with another woman.
Me: he keeps going back to his wife but says our souls knew!

Friend: he’s a player, He’s a train boy.
by Wahsner June 09, 2018
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