what does #rp on twitter mean?

[Belovedisland198]

i need help for anyone who can tell me how to see a picture. When I am on my friends twitter page i click on #rp or i guess it's called real play and i can't see the picture. instead it takes me to some index of other people. i really want to see my sisters #rp picture. can anyone tell me what i am doing wrong? 10 pts to best answer.

[Taylor]

RE-POST.
It means someone posted it first, then someone else re-posted it