Jimmy Kimmel let it rip last night on The Jay Leno show, showing Leno no mercy.

Jimmy had previously hosted his own late night show on ABC in character as Jay Leno. Leno returned the favor by inviting Jimmy on The Jay Leno Show last night as part of his "10 @ 10" segment in which Leno asks 10 questions of his choosing. Big mistake.

When Leno asked Kimmel what his favorite prank was, Kimmel responded, "I told a guy that five years from now, I'm going to give you my show, and then I gave it to him and took it back almost instantly." Kimmel continued, "I think he works at Fox or something now."

Then Jay asked, "Ever order anything off the TV?" Kimmel responded, "You mean the way NBC ordered your show off the TV?"

But it didn't stop there. When asked about strippers, Kimmel said, "I don't like strippers because you have a phony relationship with them for money. Sort of like the way you and Conan were on The Tonight Show together passing the torch? You know what I'm saying."

And in a final plea for Conan's job back, Jimmy said, "Listen, Jay, Conan and I have children. All you have to take care of is cars. We have lives to lead here. You have $800 million. For God's sake, leave our shows alone!"