Well, I'm not sure that I, personally, would yell anything starting with P. However, I can imagine some situations where it would be necessary. For instance, if Pirates were coming... I might yell "Pirates are coming!" (Imagine that in a really loud voice.)
If my brother asked me whether I liked Digimon or Pokemon better, then I would just remain silent at first, because ... what a stupid question. But if he kept pestering me, and pestering me, and asking and asking, then I might yell "Pokemon!!"
If a similar question were asked about peaches and plums, I probably wouldn't yell at first... but if I said plums, and then I was given peaches, I might start yelling "Plums, I said... PLUMS!!" ... Even though, in reality, I prefer Nectarines.
If I were in a car with a friend, and we were approaching a crosswalk, and there were people in it, but my friend didn't seem to be slowing down... I might yell "Pedestrian."
If I were rooting for a Hockey Team whose mascot were appropriate, I might yell "Penguins!! Go Penguins!! Kill them!!"
If I was babysitting and the child was holding his mom's expensive vase, I would yell, "Put that down! Don't play with that!!"
In the event that you had just beaten another party at a game of Halo or similar, you could yell "pwned!"
If I were outside on a very hot day and my mom was inside and she yelled "hey... do you want a hot dog or a popsicle?" I would yell "popsicle!!"
"Vamoose!"
tornado, torpedo
"BE HOME BY 6:00!" Lol!
· peanuts, popcorn (vendor at baseball game)
The only word I can think of is "POLO!!", as in the pool game Marco Polo.
reboot, walk away, yell, curse
· never · next · no · now · nurse
Pants
pineapple juice
Distance
People yell run, robber or rebound. People yell Ready, Set, Go.
People yell Taxi, Thank you, and Timber. They also yell Touchdown, Tornado, Thief and Time out.