1.a boy or girl who hasn't finished the stage of the pyrotechnics of a grade7 . it still continues to burn paper and other flammable things in excess. Very highly developed in Pyrotechnics, however since fire is all it thinks about.... It has poor social skills.
2. a person who believes that burning his penis is safer then a condom, and will force itself upon a female if needed to climax
3. a total flamer
"oh dude it was so cool. i burned shit in the microwave"
response- "your such a pyro fag"
"man see that kid? he burnt his penis"
"he's a total P.F"