It stand for "progressive". As in progressive scan. Also, as opposed to 1080i in which the "i" means "interlaced"

All these 17-year old #PCMasterRace fucks thinking 1080p means 1080p(ixels) is really grinding my balls.

EDIT: PCMasterRace is life. It's also full of circlejerking fucktards. Kind of like sep7agon.net

I am ashamed to admit I only recently learned that, its one of those things that you never apply much thought to.

p stands for poop

P could also stand for PC, as in PC master race. Checkmate mate

Checkm8 indeed.

Really? I thought it stood for penis.

1080penis.

Now that sounds like something interesting.

>16:9