meaning of P & R in internet slang

Ok, so I have a question COMPLETELY off topic but i'm very interested to know the meaning of P&R in this context b/c i can't figure it out!

somebody asks the following: P & R?
somebody responds: No, i'm too tired.

Anyone have any ideas what it could mean? I was assuming peace and relaxation, but since the response was no i'm too tired, i don't believe this to be the case....I'm going through chat logs for a company and this is something that came up between two remote workers.