"Donnie Fatso" is the ninth episode in the twenty-second season of the American animated television series The Simpsons.

As Homer takes out the garbage, Chief Wiggum, Eddie, and Lou arrive and issue him multiple citations and fines - the result of recently passed, frivolous laws intended to bring in revenue for the city when broken.

Eventually Fat Tony discovers Homer's undercover status and, emotionally devastated by his betrayal, dies of a fatal heart attack.

She is surprised and thrilled when he returns home with his prison sentence lifted, but Homer feels guilt for Fat Tony's death and bitterness toward the government over being used to bring him down.

In his interview with Entertainment Weekly, showrunner Al Jean was pleased with Hamm's performance, opining: "You gave him one note and he immediately did twelve great things with it.

In his interview with Access Hollywood, he continued, "I got to work on The Simpsons, which I watched for 20 years and the show is still fresh and still funny and the characters still resonate.

He resumed: "Continuing to bite the hand that feeds part of it, Fox broadcasting once again allows its cartoon characters to run wild.

[6] "Donnie Fatso" features several references to music, film, media, and other pop culture phenomenon, mostly mafia-crime centric.

At the end of the episode, Homer's monologue serves as a shot-by-shot homage to the final monologue-voiceover of Henry Hill in Goodfellas.

Near the end of the episode, Fit Tony narrowly avoids a car bomb, a scene similar to that of Robert DeNiro's character, Frank 'Ace' Rothstein in Casino.

Also in homage to Goodfellas, is the final shot where Maggie is seen firing a revolver at the screen, much like Joe Pesci in the end of the movie.

The episode was viewed by an estimated 7.32 million viewers, despite airing simultaneously with Extreme Makeover Home Edition on ABC, The Amazing Race on CBS, and a game between the Philadelphia Eagles and the Dallas Cowboys as part of the 2010 NFL season on NBC.

Entertainment Weekly writer Darren Franich named Fat Tony's death the ninth Best TV Character Death of 2010, writing, "give the writers some credit for doing something different: In the middle of an otherwise straightforward mob-themed episode, they actually went ahead and killed off Fat Tony, a character who was first introduced almost twenty years ago.