Primary swell
The dominant swell in the water at a specific location like a buoy. The second dominant swell would be called the secondary swell, and the third dominant swell would be called the tertiary swell.

Prog
Abbreviation for prognosis chart, which is a weather chart for a forecasted time in the future. Surf forecasters make final decisions on "analysis" charts, which are real time charts, and other factual information after the storm actually happens. But the progs are great for looking out further to get a heads up on what may happen in the future.

Prone Out
To drop to your belly after riding a wave. This is usually done when a surfer is coming in after a session. It lowers and dispersers a surfers weight and center of gravity making it possible to ride the whitewater all the way to the beach.

Propagation
The term defining the movement of swells through the ocean. Waves and swells will "propagate" from the storm source to other areas.

Prune
Condition where the fingers become ill-shaped after a long period of time in the water.

Pucker
The non-technical intimidation factor a wave has to render someone from a state of calm to panic.

Pull in
The process of turning the surfboard up to enter the barrel or the tube.

Pull Off 
To succeed making a radical maneuver.

Pull out
See kick out.

Punt
To launch into an air from a maneuver.

Pumping
Excellent surf; a surf condition of very consistent waves with a very strong swell. Also, the act of making deep quick turns on a surfboard to gain speed down the line.

Punchy
A surf condition in which the waves are powerful, but not extraordinarily so. Often used to described short interval beachbreak.

Pure Line
Name for the optimum position to surf on any given wave. Each one has a pure line, and each is unique.

Pure Sex 
Something awesome is described as being that of "pure sex."