What does IPN mean?
Instant Payment Notification
Other definitions of IPN:
All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of IPN that should be included here, please let us know.
How to use the term IPN:
There are no example uses of IPN at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

Dabs
Term for a usually small dose of marijuana extract. When smoked through a special device (dab rig), they can get you stoned.

KTY
Ok, Thank You

RUMCYMHMD
Are You on Medication Cause You Must Have Missed a Dose

YOUS
You, you guys