1 definition by J Kennedy

This is a reference to the title phrase of the book by Catherine Ryan Hyde.

In the book the phrase is used as the opposite of payback: when someone does a good dead for you, instead of paying them back, pay it forward by doing a good deed for someone else.
19:50 <Canaan> do u want something in return
19:51 <itchy> nah
19:51 <itchy> pay it forward
19:55 <Canaan> haha, will do
by J Kennedy August 12, 2006