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The act of sticking toy trains in one's butt-hole.
Hey babe, wanna do trainal?
by bullshittery December 15, 2016
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noun. To form a line in which everyone humps the person in front of them. This can be done with either all guys or a female with a strap-on between each male.
Yo bitch, Our guests are hear, let's have trainal.
by yohan November 14, 2004
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When you have a rather long piece of toilet paper leading from your ass out to the floor or extending from skirt or pant leg. Also see trainal.
Omg did you see that trainal on that chick? She was trainaling all over the dance floor. It was trainalific.
by cheru June 08, 2014
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