Quote from Phoebe in The One with the Inappropriate Sister
Ross: So, Pheebs, you going back out there? Phoebe: Yeah, but I won't take any more crap. No more Mrs. Nice Bucket. Monica: Yeah, good for you. You're tough. You lived on the street. Phoebe: Yeah, I'm going to go back to being Street Phoebe. Yeah. Oh, but you know what, I can't go totally back because Street Phoebe would really wouldn't be friends with you guys.