He bailed.
参考：
Friends S01E15:
[Scene: Monica and Rachel's, Monica is on the phone. Rachel walks in and overhears the conversation.]
Monica: (shouting on phone) Wendy, we had a deal! (Listens) Yeah, you promised! Wendy! Wendy! Wendy! (hangs up)
Rachel: Who was that?
Monica: Wendy bailed. I have no waitress.
Rachel: Oh... that's too bad. Bye bye. (she walks away towards the door)
Read more at: https://tvshowtranscripts.ourboard.org/viewtopic.php?f=845&t=31384
