* In the [[http://www.youtube.com/watch?v=1Dvi3tDiAJM episode]] "Fonzie the Father", Louisa, a pregnant wife of Fonzie's buddy, is told to stay with the Fonz until he finishes his cross-country race.
** Louisa shows up at Arnold's Drive-In and asks Potsie, Ralph, and Richie a question.
--->'''Louisa:''' Hi! Excuse me... which one of you is Richie?
--->''(Potsie, Ralph, and Richie notice Louisa's baby bump, and point in the opposite direction.)''
** And after Richie is telling the Fonz that Louisa is looking for him, she shows up, taps him on the shoulder...
--->'''Louisa:''' Excuse me... Hi! I'm Louisa!
--->'''Fonzie:''' (looks at Louisa and notices she's pregnant) Hi! I'm Potsie Weber!
** In the same episode, Joanie says "Can I check on the--", sees Louisa and that she is pregnant, and says "Baby?!".
* Fonzie shows up unannounced at Chachi's new job as a photographer's assistant... and flips out when the girl being photographed completely disrobes.
-->'''Photographer''': So, how do you take a bath?
-->'''Fonzie''': Without cameras, usually!
** Later in the same episode, Chachi, after having been convinced to do so by the Fonz, resigns thusly:
-->'''Chachi''': Look, I'm sorry Jake, but I gotta quit. You see, my cousin just offered me this new opportunity: If I leave here, I get to live.
* When Fonzie and Pinkie Tuscadero decide to get married, but don't make their intentions clear in front of a nun. It leads to this exchange:
-->'''Pinkie''': Yeah, let's [[ThatCameOutWrong do it!]]
-->'''Nun''': OVER MY DEAD BODY!!!
-->(The live audience ''loses'' it)
-->'''Fonzie''' (after the [[LaughTrack laughing]] dies down): We're talkin' about gettin' married!
-->'''Nun''': Oh! Never mind then!
* [[http://www.youtube.com/watch?v=k6S9IEAE_s0 Mork]]. [[http://www.youtube.com/watch?v=RUpkOWSZaOE Mork]].
* On the 20th anniversary show they show some outtakes including one of Fonzie kissing Marion Cunningham's neck then making out with her, then another which shows her coming down from his apartment with a coy smile while she buttons up her blouse. Another [[http://www.youtube.com/watch?v=oS7XXiqH_4E#t=91s intentional gag]] was a take on a scene where Fonzie snaps his fingers and a crowd of girls is supposed to follow him offstage with their arms around him... only in this case it's a [[EvenTheGuysWantHim crowd of dudes instead]].
* The iconic moment when Fonzie goes to comb his hair in the mirror and realizes... ayyy... it's already perfect.
* The 30th anniversary special spent half its running time with Garry Marshall hosting a cast reunion at the Arnold's set:
** Scott Baio took a seat at the far end.
--->'''Garry:''' Look how far away you're sitting! You're at the reunion of ''Series/CharlesInCharge''!
** Marshall explaining why they burned down the original Arnold's.
--->"It was either have a wedding or burn something down. It was sweeps."
** Another Marshall moment is when he recalls Richie and Fonzie dating [[Series/LaverneAndShirley girls from the other side of the tracks]].
--->"Y'know, girls who weren't so classy. The first one I thought of was my sister Penny.
* This bit at the end of "The Motorcycle", [[spoiler: Ralph Malph had run over Fonzie's bike and to prevent him from running away, they [[BoundAndGagged tied Fonzie up]] while Ralph apologized]], and when he was released, the Fonz said "I gotta go" and Mr.C said "You can't just go and leave your bike here!" and Fonzie said "No, you don't understand. [[spoiler: After being tied up for six hours]], [[PottyEmergency I gotta GO!]]
* When Richie tries to be a tough guy, and it doesn't work, but he says "Works for the Fonz" and Ralph says "EVERYTHING works for the Fonz!"
* When [[spoiler: Fonzie moves in]], Mr. Cunningham says "But then he might get married, and we'll have a Mrs. Fonzie burning the eggs upstairs and little baby Fonzies walking around in leather diapers."
* Fonzie makes Ralph and Potsie kiss the pinball machine to exercise their lips, calling it "lip ups" and then Arnold sees them doing it.
* Fonzie gives the boys love advice and Potsie says "Now we can be like you!" and the Fonz says "You gotta walk before you can run!"
* When Joanie was given peanut butter to cheer her up after being dumped at the end of They Call It Potsie Love, she declares it to be one of those days as it is crunchy and she likes smooth.
* Joanie dreams she sends her parents to their room in one episode, and when they wake her up because she fell asleep on the couch, she says "I thought I sent you to your room!" And during that dream sequence she is marrying Potsie and the celebrant is ''Fonzie''. He says he was certified by the motorbike company.
* When Fonzie tries to sleep outdoors, and the animals are keeping him awake so he shouts "Cool it!" and they go quiet and the Fonz says "I'd like to see Tarzan do that!"
* When the boys are on a nature walk, chasing girls and pretending to be foreign, Fonzie blows their cover and the girls are disgusted, but
Potsie asks "Can we still make out?"
* Potsie visits in one episode and [[BigEater eats six hamburgers]]. Mr. Cunningham says "He's eaten six!" and Mrs. Cunningham says "He's a growing boy!" and Mr. Cunningham says "Why doesn't he grow at home?"
* When Mr. Cunningham is depressed, his family try to play This Is Your Life with him, but they bring in Potsie and Fonzie as friends and also bring in Howard's teacher who doesn't like him very much.
* Howard trying to fix a window, and then Fonzie does it just by stamping his foot.
* Mr.C says "Can Potsie do anything besides eat?"
* In an April Fools party, Fonzie says he cannot decide who will win the prize for King of the Fools, as there are so many fools to choose from.
* Joanie's one-liner "This is pathetic: now I'm sending ''myself'' upstairs".
* When the kids were singing doo-wop and Arnold says "You pay money for the food but I don't get any money for doo-wop."
* When Richie is playing basketball and about to win, Fonzie gets up to cheer, but decides that would not be dignified and sits down again.
* The Physical, which is the one where the boys train for the army, had several funny moments.
** Fonzie puts one foot on the stairs they have to run up, and the lieutenant lets him off the hook. Doesn't work for Ralph.
** Ralph's underpants are white with a lobster on.
** Ralph eats his note, which was a prank one from his dad saying he was legally blind.
** The boys have to take their shoes and trousers off to do their physical, but Fonzie, although he did do it, would not take his jacket off. The officer didn't like it, so he said "Everyone with jackets, go to the end of the line", and Fonzie went to the ''beginning'' of the line. The officer says "I said the ''end'' of the line!" and Fonzie says [[LoopholeAbuse "This IS the end of the line! The FRONT end!"]]
** When Marion says "You need some breakfast to give you energy for all that exercise!" and Richie says "Running around in your underwear is not exercise!"
** Marion wakes Howard early, and he thinks it's an eclipse but really it is still dark, and he says "Wake me if there is a real eclipse!"
** Becler [[AccidentalMisnaming mispronounced]] as Belcher. And before that, Sgt Becler calls Fonzie "Forchanelli".
* Whenever Fonzie gets called Arthur or Potsie gets called Warren.
* Mr.C says "Your friends won't laugh at you" in "Richie Branches Out". Cut to Fonzie laughing at Richie.
* In "Fonzie the Salesman" Joanie says "Fonzie! Your hair! It's all messed up!"
* "Joanie's Weird Boyfriend":
** Joanie was wearing makeup so Fonzie said "Hey, Shortcake, that's a lot of icing you have on!"
** Also a fight is about to break out between a street gang and a team of Richie, Joanie, Potsie, Fonzie and Ralph. Fonzie say "Send out your toughest members." The leader, who Joanie had a crush on, says "I'll send out my weakest." [[LovableCoward Ralph]] nervously says "Good idea".
* In the Second Anniversary Show, it is Howard and Marion's wedding anniversary and Howard's short cousin Nancy visits and first mistakes Fonzie for Richie, then says "And you must be little Joanie" but then notices she's taller than her and says "Big Joanie."
* Marion notes that when she worries she cooks and when Howard is worried, he eats, that's why they have a happy marriage. Joanie says "And that's why you have a happy tummy!".
* Every time Richie is on a microphone he says "Yowsah yowsah yowsah!"
* Richie, Potsie, Ralph and their respective girlfriends make out in the car. Richie's girlfriend doesn't want to make out and she tries to sketch Richie, but draws Ralph's foot next to him as Ralph was lying down.
* Pinky says "When will I learn to spell 'Fonzarelli'?" and Fonzie says "Well, you learned to spell 'Tuscadero', didn't you?"
* Ralph's girlfriend gets stung by a bee because there was a bee in the flower he gave her. Said flower had been pulled out of the ground and still had dirt on it.
* "Two Angry Men" had several.
** When Fonzie's pigeon house combined with a blizzard makes a hole in Fonzie's roof, Fonzie wants to sue Howard and Howard wants to sue Fonzie.
** When Howard said "I will sue him" about Fonzie, Richie replies "You can't sue the Fonz!"
** In the end, Fonzie has to pay the money to fix the roof, but Howard decides to pay half, and then a girl volunteers to pay the other half. Howard says "That's not fair! You don't get to pay anything if she pays the other half! How come you struck it so lucky?" Fonzie's reply?: "Because I'm the Fonz! Ey!"
* In [[TropeyComeHome "Spunky Come Home",]] the Fonz's dog Spunky is missing, and Fonzie draws her but just draws a stick-dog, which causes everybody else to bring in every dog they see, so he asks a cop to draw Spunky based on a description, but the policeman draws a dog with Al's face, because he was using Al to demonstrate her facial expression.
* Though kind of a TearJerker episode, "Fonzie's Baptism" had several funny moments.
** Mr.C is about to give the "everybody dies" speech to the Fonz by saying "Sooner or later [we will die]", but Fonzie says "I choose later."
** He may try to deny it but Al's identical twin brother the priest looks ''exactly'' like Al.
** During the baptism, Joanie looked like she was trying to laugh, and Fonzie looked like he was thinking "Watch the hair!"
* Fonzie thinks collateral is a disease in "Fonzie the Salesman".
* "Fearless Fonzarelli", like "Fonzie's Baptism", was kind of a serious episode, but had a few laughs.
** The family who played cards underwater on the T.V.
** Fonzie being picky about his combs.
** Arnold being asked "Are you Fearless?" and replying "No, I'm chicken." when he was selling chicken.
** The will was ''kind'' of funny.
* One time, Richie asked the Fonz for love advice and he demonstrated acting like James Dean. When Richie tried, the GirlOfTheWeek thought he was crazy and handed him a book on psychology so he went to a therapist and then asked Fonzie for advice. Mr. C. basically summed it up: "So she handed you a psychology book, you thought you were crazy and went to a therapist, and then asked advice from a high-school dropout?"
** And also Richie said that the hypothetical character was a girl having a hard time getting girls to ask her out, hinting she is a lesbian.
** Richie thinks shampoo is mouthwash because he is distracted.
** Richie testing for claustrophobia by sitting in the closet.
** Richie: "I should see a psychologist." Ralph: "You are nuts." Richie: "That's what I was telling you."
** And taking Fonzie's advice to 'go for it' advice by kissing a girl out of the blue.
* In "Fonzie Joins the Band", Richie mouths "I love you", directed at his potential girlfriend, but Marion thinks he's talking to her and mouths "I love you too."
* Marion reveals what her children do when they are bothered: "Joanie sucks her thumb, you bounce the basketball without shooting, Chuck sucks his thumb as well."
* On one of their many attempts at scoring with women, Ralph and Potsie walk up to a pair of girls at Arnold's, with the intention of seducing them in a smooth, suave and sophisticated manner. Then Potsie comes right out and says "Hey, wanna neck in the parking lot?" The girls then smile and begin to escort them out of the restaurant, to which Ralph cries incredulously, "That ''worked''?!"
* The season 10 episode where Arnold returns to buy back Arnold's has a moment where Arnold comments on how [[PutOnABus Richie, Ralph, and much of the usual gang have all gone on to other things.]] Behind him, Potsie pipes up with "I'm still here!", to which Arnold replies, "Why?" Even funnier when he follows it up with his SignatureLaugh.
** The story of how he managed to buy back Arnold's from Al Delvecchio, who had moved from Milwaukee to Chicago (and was appearing instead in ''Joanie Loves Chachi''). Instead of paying money for the place, Al sold Arnold's back for a "symphony": Arnold laughing his SignatureLaugh to the tune of "The Blue Danube".