Watch Josh Peck Go Full Uncle Jesse In Front Of John Stamos

The Teen Choice host showed no mercy.

If John Stamos and Josh Peck's upcoming TV series "Grandfathered" was nothing but the two men doing impressions of each others' most beloved characters, we'd be totally okay with that.

Peck got the ball rolling (and the teens laughing) with his spot-on take on Uncle Jesse at the Teen Choice Awards on Sunday (August 16) -- which would have been great on its own, but was elevated to legendary status when Stamos turned the tables with a throwback line from "Drake and Josh":

"Well played," a flummoxed Peck said after Stamos delivered one of "Josh's" most beloved lines, "I ain't calling you a truther."

And while we're not exactly truthers either, we're still going to take this as a sign that Peck will be appearing on "Fuller House" as Jesse's long-lost baby brother.