A General Thanksgiving Episode - S4-E3
Cleveland Brown: This isn't funny like Airplane. It's a disaster like Airplane II.
Cleveland Brown: I don't even need to buy bullets, cause I'm sweating them.
Cleveland Brown Jr.: Are you staying at your deadbeat dad's too?
Roberta Tubbs: Please, if I wanted to breathe toxic mold and get flea bites I'd date Zach Galifianakis.
Zach Galifianakis: It's gonna happen one way or the other.
Tim the Bear: Arianna. Robert. I walked in on them. They were playing Hide The Salman Rushdie.
Answer: In the episode "A Rodent Like This" Rallo discovers that Cleveland Jr. is actually a secret agent who is tracking down Tim, who is actually criminal. Jr. reveals that in order to get close he had to eliminate the real Cleveland Jr. luckily Cleveland doesn't pay attention so it was easy. Whether or not this is canon or not depends on the writers.