PYB

Stands for PostYourBook.com

A website for college students to buy and sell their textbooks to each other.. started at Santa Monica College, and made its way through USC, UCLA, UCSD, UCSB, and huge universities world-wide.

"PYB BABY!"
"Post Your Book Baby"
The expression used when students tell each other to screw the college bookstore, and post their books on the website PostYourBook.com..

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