X3PF 

of or relating to pornographic puppy farms.

see the following:
www.xxxpuppyfarm.com

X3PF by Anonymous June 1, 2003

X3PF 

Perverted, Disgusting, Slimey, Dirty, Gross. Used to describe perverted behaivior and habits. Also used as a name to call a perverted person.

That was SO X3PF of you!
You X3PF!

X3PF by Lunabird May 28, 2003