What does RP stand for?

Ring: -sighs- I wish I was sick today.....-ear shows and a small chunk is missing-

Margaretine: Oh, sorry to hear that.. I was out in the- -freezes- Uh, I was walking with Kassie..

Ring: Terrible.......I was with one of the Stolls....

Margaretine: -walks in- Hi Ally- Ring..? -runs over to the hospital bed- How'd the three-legged race go..?