look up any word, like dirty sanchez:

2 definitions by bigbadbob

A group of guys stand in a line outside a room. One by one, they enter the room to have sex with one girl inside. The line must have at least 7 guys to be qualified as a train.
"What's this line for?"
"We're running a train! Go to the back of the line."
by bigbadbob February 25, 2003
When you stick your dick so far down a girl's throat it comes out her ass and looks like a tail.
"Man, last night she took the 'tazmanian tail' like a pro. It was incredible!"
by bigbadbob February 27, 2003