Episode - 3F06
First Aired - 11/19/1995
After faking his own death and getting the mistake cleared up at the town courthouse, Homer makes a discovery: his mother, Mona (who supposedly died when Homer was a kid), is still alive, but the joyous reunion (at the cemetery after Homer discovers that the grave that allegedly belonged to his mom is, in fact, the grave of writer Walt Whitman) is cut short when the FBI comes after Mona for something she did in the 1960s, which is connected to Mr. Burns and is why she abandoned Abe and Homer.
- Cool Old Lady: Bart likes Mona because she's a rebel and a fugitive; Lisa admires her strength and intellect.
- Downer Ending: Homer had to watch his mom walk out of his life again after keeping her from getting caught by Mr. Burns (on the plus size, at least Homer was awake to see his mom leave).
- Faking the Dead: Homer did it to get out of picking up garbage at a highway during a Burns-sponsored event.
- Grandma, What Massive Hotness You Have: Subverted. Mona has aged a lot better compared to Abe.
- Loud of War: Mr. Burns plays an audio casette recording of Ride of the Valkyries as he storms the Simpsons' household...and the tape quickly cuts to Abba's Waterloo, which Smithers admits he recorded over the original music.
- Mood Whiplash: The episode is full of this, with wacky scenes immediately followed by dramatic, emotional ones.
- No Celebrities Were Harmed: The FBI agents assigned to find Mona are Joe Friday and Bill Gannon. Harry Morgan reprised his role as Gannon.
- Obnoxious In-Laws: Marge's first reaction upon learning she had a mother-in-law was commenting she couldn't live vicariously through her friends who do have in-laws, though this is averted, as Mona is actually nice to Marge and the kids.
- Punctuated! For! Emphasis!: "I! Hate! You! Walt! Freakin'! Whitman! Leaves of Grass my ass!"
- Rhetorical Question Blunder: Homer doesn't understand them. This example is even used at the top of the trope's page.
- Ride of the Valkyries: Mr. Burns plays it while assalting the Simpson home. However, Smithers had taped "Waterloo" by ABBA over it (Originally, it was supposed to be WHAM!'s "Wake Me Up Before You Go-Go," but the producers couldn't get the rights to that song. It works either way, as both ABBA and WHAM! have a following with gay men and Smithers is speculated to be gay [whether with other men or just his boss]).
- The Sixties: Mona's rebelliousness is encouraged when she notices Joe Namath's long hair and the spirit of the 1960s falls upon her.
- What the Hell, Hero?: When Abe meets Mona for the first time in years, they both call each other out for A: abandoning the family and B: telling Homer Mona was dead.
Mona: Oh Abe, you've aged terribly.
Abe: Well what'd you expect?! You left me to raise the boy on my own!
Mona: I had to leave! But you didn't have to tell Homer I was dead!
Abe: It was either that or tell him his mother was a wanted criminal! You were a rotten wife and I'll never, ever forgive you! ...Can we have sex, please?
Mona (disgusted): Oh Abe...
Abe: Well I tried. What's for dinner?