The Martian: Among the things Mark does in his down time while stranded on Mars is watch Happy Days reruns from Lewis' computer. Later, when he's able to take and send pictures, he poses as the Fonz, complete with thumbs-up gesture and saying Fonzie's Catchphrase, "Ayyy!" as the picture is taken. Annie, in charge at PR at NASA, is not happy about this.
Pulp Fiction: When Jules is holding a gun on Pumpkin, and Yolanda is pointing a gun at Jules:
Yolanda: (crying) Don't you hurt him. Jules: Nobody's gonna hurt anybody. We're gonna be like three Fonzies. And what's Fonzie like? (Beat) C'mon, Yolanda, what's Fonzie like?! Yolanda: Cool? Jules: Correct-amundo! And that's what we're gonna be. We're gonna be cool.
In "Rocky/Julie's Dilemma/Who's Who?" two adolescents debate the merits of kissing, deciding that if Fonzie does it, it can't be too bad.
In "Ship of Ghouls," a little girl is angry with her friend because he lied to her. When he tries to win her friendship back by saying he's friends with the Fonz, she storms out of the room.
Saturday Night Live: When Ron Howard appeared on the show, Eddie Murphy appeared with him in a sketch where Howard wants to talk about the new movie he directed, Night Shift, but Murphy just wants to talk about Happy Days, until Howard finally snaps and storms off, though not before telling Murphy, "Sit on it, bucko!"
In "The Son Also Draws", The Fonz was Peter Griffin's spiritual guide while lost in the forest during his vision quest with his son Chris. He told Peter that he should start paying attention to Chris more and accept his drawing abilities. In an episode of Happy Days seen earlier in the episode, Richie reveals he is in love with Potsie.
In "The Father, the Son, and the Holy Fonz", Peter starts his own religion, Fonzism. This new religion, centered around The Fonz with services held at The First United Church of the Fonz, borrows surface elements from Catholicism but uses Happy Days episodes as its sacred texts.
A sketch from "Gold Dust Gasoline" has Fonzie as a competitor in a race in "3 Fast 3 Furious". He is later seen at the victory party, where he pops open a corked bottle, but the cork hits Evel Knievel in the head.
A sketch from the first Star Wars special has Chewbacca combing his hair in the mirror after which he does the iconic Fonzie open-arm gesture.
A sketch from "Celebutard Mountain" has Fonzie and Chachi star in a parody of The Pursuit of Happyness entitled "The Pursuit of Happy Days".
A sketch from "Ants on a Hamburger" has Ralph die from juggling knives and Fonzie tries to resurrect him but turns him into a zombie instead. Ralph then turns Potsie and Richie into zombies and Richie tells Fonzie to kill him so he doesn't turn into one.
In "Saturdays of Thunder", when Patty and Selma want Homer to do a quiz on fathers, they tell Marge that Henry Winkler was a father and that Winkler told a close friend: "I don't always keep my cool like the Fonz but my love for my kids has given me plenty of happy days."
In "The Otto Show", Homer is not eager about Otto staying at his house and says, "This is not 'Happy Days' and he's not the Fonz.", whereupon Otto enters and greets Homer with the line: "Hey, Mr. S.", in the way the Fonz would greet Mr. Cunningham.
In "Lisa the Beauty Queen", one of the caricatures made by the caricaturist depicts the Fonz, amidst caricatures of Farrah Fawcett and Darth Vader.
In "Itchy and Scratchy: The Movie", in a flashback, Homer is shown reading an issue of TV Guide to baby Lisa; "8:00, Happy Days. The Fonz (Henry Winkler) is worried he's losing his cool."
In "Marge Gets a Job", Lenny appears at a party dressed as Fonzie and says: "Hey, sit on it!". He is then informed that 1950s night was last time, whereupon Lenny decides to instantly go home and change his outfit.
In "The Front", when Homer and Marge go to their high school reunion, Homer says it will be great to see the old gang again, Potsie, Ralph Malph and the Fonz. Marge then tells Homer that that was Happy Days. Homer misunderstands her remark and says that they weren't all happy days, like the time Pinky Tuscadero crashed her motorcycle or the night Richie Cunningham lost all his money to those card sharks and his dad, played by Tom Bosley, had to get it back.
In "Homie the Clown", Homer dresses up as a clown and tells Lisa that it was bad enough when he tried to pass himself off as Tom Bosley.
In "The Twisted World of Marge Simpson", Disco Stu says "Hey-y-y-y" in the style of the Fonz.
In "Itchy and Scratchy and Poochie", the character of Poochie describes himself as "half Fonzarelli". Later, the character Roy moves in with The Simpsons, whose style and mannerisms are a parody of the Fonz, complete with the line: "Hey, Mr. S."
In "When You Dish Upon a Star", Homer meets Ron Howard, who played Richie Cunningham on the show, but incorrectly addresses him as "Potsie". At the end of the same episode, Ron Howard successfully pitches the script for The Terminizor: An Erotic Thriller (which had been Homer's idea) to a Hollywood executive. The Happy Days theme song plays as the closing credits begin to roll.
In "Make Room For Lisa", Homer is more interested in Fonzie's jacket in the Smithsonian Museum than any other historical valuable object. Bart has no idea who Fonzie is, so Homer lectures him that Fonzie freed the squares.
In "Homer the Moe", Homer tries to fix the jukebox in Moe's Tavern by hitting it with his fist, like Fonzie. However, he breaks the glass, badly cuts his hand, and barely manages to say "Hey" and strike a thumbs-up pose (also like Fonzie) before he collapses.
In "Gump Roast", during the song They'll Never Stop the Simpsons, Homer is seen on waterskies jumping over a shark, a reference to a famous episode of Happy Days in which Fonzie does the same .
In "How I Spent My Strummer Vacation", the Simpson family literally jumps the shark during the Couch Gag.
In "In the Name of the Grandfather", a man on the street tells Homer that he is in AA. Homer replies, "Who are you, stuttering Fonzie?!".
In the Couch Gag in "Homer Scissorhands", the couch is in the Smithsonian Museum, where Fonzie's jacket is seen again. The same couch gag is used again in a later episode, "Replaceable You".
In "The Book Job", Homer calls Neil Gaiman "British Fonzie".
In "Gone Abie Gone", a picture of The Fonz is seen in a locket.