What does P mean in football?

P is a punter in football. The kicker who gives the ball back on fourth down, as far downfield and as hard to return as he can.

What a punter looks like

36 punters are on NFL rosters right now, and the median one is 6' 3" and 214 lb.

On rosters
36
Median height
6' 3"
Median weight
214 lb
Median age
29

Distance alone flatters him: what a club measures is net punting, distance after returns and touchbacks are taken off.

The rest of the NFL roster