PFKS 

Pizza Faced Kid Syndrome.

Death or health related complications from the aggravation of a Pizza Faced Kid (PFK). Usually associated with online gaming, as smack talk through the internet is easy and "Umadbro?" can really mess with individuals that already have anger issues.

Guy: So whatever happened to Ruburs? Did he die of some
anger induced stroke?

Other Guy: Nah, PFKS. Pizza faced kid syndrome.

PFKS by Predfark December 31, 2010

PFKs 

Parent's friend's kids. Usually your long time friend since you were a kid and even though you barely see them, you still share that special bond.

My dad had a party so he invited a bunch of friends along with the PFKs group. We played a bunch of card games a nintendo games but then they had to leave.

PFKs by dromanicular June 19, 2011