Top Definition
A slang word for the very powerful prescription drug Alprazolam also know as Xanax in the Benzodiazepine family. They are highly abused and very addictive with a street value of 2$ a milligram.

The term "Yellow School Buses" gets its name from the 2mg XANAX pill which is shaped like a bar sometimes are yellow. The pill can be broken into 4 pieces each equaling .5 milligrams. Hence the name "Yellow School Buses"
Kenny: I woke up in a someones house and cant find my cell phone, wallet or my pant's and don't remember a damn thing.

Ivan: Must of been those Yellow School Buses you took.
by Ivan S Tessmer January 24, 2013
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.