Rachel: "He pretended to be Drake to, to sleep with me." (Throws water in Joey's face)
Monica: "And then he told me he would run away with me, and he didn't."(Throws water in Joey's face)
Chandler: "You left the toilet seat up, You bastard!" (Throws water in Joey's face)
Monica starts dating a man who writes a poem while with her. She is at first happy until the others tell her it is saying bad things about her. She confronts him to find out it isn't about her but about all American women. She comes back from this by breaking up with him... through a barbershop quartet.
You think there's no-one finer,
While your poems are unpublished,
And you work in a diner,
You're no God's-gift-to-women,
It's all in your head!
You are such a butt-munch,
(No, no-one likes a butt-munch)
And you're also bad in bed!
Watching Chandler defy odds and beat Mike at ping-pong, when he was going round for round with Monica.
Ross' breaking up with Rachel in the season 4 opener. Every line a winner, with Rachel failing to make more than one comeback. Apart from, of course, her final line in the scene. Ross' lines in that scene are gold.
Rachel: I can't believe I even THOUGHT of getting back together with you, we are so over!
Ross: [makes fake blubbering noises] FINE BY ME!
Rachel: I just feel bad about all that sleep you're gonna miss wishing you were with me!
Ross: Oh no no, don't you worry about me falling asleep - I STILL HAVE YOUR LET—TER!
Rachel: And hey, just so you know, it's not that common, it doesn't happen to every guy, and it IS a big deal!
Hugh Laurie's character putting Rachel in her place, regarding their (Ross an Rachel's) relationship.
Rachel: But he has to know how I feel!
Other Passenger: Why? He loves this Emily person! No good can come of this!
Rachel: I think you're wrong!
Other Passenger: Oh, no! (is about to put on his headphones, then turns back to her) And by the way, it seems to be perfectly clear that you WERE on a break!
When the gang started expressing disgust/dismay at the idea of Monica dating Richard's son, she pointed out their own relationship, er, quirks:
Every time Tom Selleck guest showed up in an episode, he got a standing ovation. Every single time. Eventually, they would just reshoot the scenes without the Studio Audience.
The climax of "The One With The Prom Video". Frequently ranked as one of the single best moments in television history.
Janice telling Chandler that she doesn't care that he broke up with her for the 3rd time because eventually he'll always come back to her. It implies Genre Blindness, as she's married to someone else a few episodes later. They did get back together the following season, but only very briefly, and then never again... Though she gives up on them as a couple with the birth of her first child.
Rachel fantasizing about having sex with Chandler in "The one with the flashback".
Joey telling his cheating dad and "The Mistress" off, outliving every oppressed teenager's wet, rebellious dream in the process:
Mr. Tribbiani: We'll go to a hotel.
Joey: (blocking the door) No, you won't. If you go to a hotel, you'll be...doing stuff, I want you right here where I can keep an eye on you.
Mr. Tribbiani:You're gonna keep an eye on us?
Joey: That's right, Mister, and I don't care how old you are, as long as you're under my roof, you'll live by my rules. And that means: No sleeping with your girlfriend.
Joey: Now, go to my room!
'TOW Mrs Bing': Chandler confronting his Mom about his horrible childhood and all the crap she put him through. Afterwards he says it was a terrible talk but the main thing was that he did it.
Chandler: "Awful. Awful. Couldn't have gone worse but...I told her."
In Season 1 in "TOW The Dozen Lasagnas", when Ross lets Paolo out of Monica's apartment.
Season 2. Monica was forcing Chandler to work out with her so he very subtly tears her down by reminding her that she's unemployed and without a relationship.
Chandler & Joey winning the apartment in season 4.
A subtle one early in Season 1 'TOW the Butt': Chandler has a no-strings-attached fling with a married woman. He's intially excited but realizes he can't deal with being her sex toy, and wants a real relationship and ends it. Despite Chandler's rampant insecurities and her being totally out of his league he's still got the guts to call it off. Especially meaningful as his Establishing Character Moment was quipping about never getting women to sleep with him whereas this reveals that despite his committment phobia and jealousy of Joey's one night stands he actually happier in a relationship.
Phoebe breaking off the Cat Fight between Rachel and Monica: "Okay, now I'm gonna kick some ass!"
Season 5 New Years' episode. Joey was able to get Ross to kiss Phoebe and Rachel to kiss him so Chandler and Monica can kiss without anyone getting suspicious. He did this all within 30 seconds before midnight.
Doubles as a moment of funny, but in that episode where Joey has a party with his co-stars on the roof, everyone but Chandler gets let in on the secret, leaving the poor guy stuck watching a very awkward one-woman show. He comes back to tell them that he loved it and wants to see it again, with them this time... and the second the show starts, he informs them he lied and books it. "I can't believe you guys bought this, enjoy your slow death." *flees* Glorious.
"The One With Rachel's Other Sister": Chandler (having spent the whole day agonizing over whether or not he could ever be responsible enough to be a parent) stepping up and breaking up a Cat Fight between Rachel and Amy on Thanksgiving after seeing how much it is upsetting Monica.
Chandler tells off pretty much his whole building when Monica was making candy for them and the building loved it so much they were demanding more day and night. Monica was cracking and Chandler just takes one look at her and shuts the whole thing down.
During season four Phoebe is told she can name one of the triplets she's carrying for her brother and his wife and decides to name it after one of her friends. She decides against Ross and says it'll be either Joey or Chandler and while the two argue over which it'll be Chandler takes Joey's dismissal of his name seriously and spends the next few days looking for a new one until Phoebe says she'll name the baby Chandler if he'll keep it. As soon as she's gone he turns to Joey and laughs, revealing his whole name changing fit as a ploy to get the baby named after him. Of course, it then backfires when baby Chandler turns out to be a girl.
After finding out about Chandler and Monica in Season 5, Joey does what he can to cover for them, but it starts making him look foolish and creepy. In one episode, he winds up taking the fall for a pair of men's underwear at Rachel and Monica's, a camera set-up to record sex acts and finally a naked picture of Monica meant for Chandler. Instead of fulfilling their promise to make him look better or be more careful, they can only claim that he's a sex addict after almost carelessly getting caught numerous times. When the rest of the group confronts him over all this, it looks like he'll have to admit to it. Instead, Joey claims he slept with Monica in London and that she's obsessed with him as a result. He effectively plays Xanatos Speed Chess to pin all the recent craziness on Monica and restore his dignity.
The fact that, out of all the Friends, the only one who discovered that Chandler and Monica were together without catching them on the act was Joey. Rachel heard them having phone sex, and both Phoebe and Ross saw them from across the street (Ugly Naked Guy's apartment). Joey guessed it from two minimal clues. Chandler and Monica had decided to go to a hotel to have some time alone, but told the others it was job-related: both of them mentioned meeting Donald Trump on the hotel, and the hotel called about an eyelash curler they left there, a call Joey took, and later Monica asks Rachel if she can borrow her eyelash curler.
In Season four, Rachel is moaning to Pregnant!Phoebe about Ross and Emily's upcoming wedding. Phoebe then proceeds to tell her she had a similar problem: when she was homeless someone offered to give her food if she slept with him. Rachel asks how they are similar. Phoebe's response?
Phoebe: Well, let's see, it's not. Because that was an actual problem, and yours is just a bunch of high school crap that nobody really gives... Y'know."
Joey forgot to bring a present to Emma's first birthday so he decides to do a dramatic reading of a children's book which seemed like a bad idea but turned out he was really good at it.
Ross: Thank you so much for that.
Chandler: (almost about to cry) I was not ready for this.
Rachel beating up the girl that Joey dated who was too "punchy" with him.
In "The One With the East German Laundry Detergent", a rude and nasty woman tries to bully Rachel out of her washing machine, but Ross steps in and tells the woman off. Later on, the same woman tries to take the duo's cart claiming it was free game, but Rachel sticks up for herself by telling the woman off and jumps into the cart saying if she wants it, she has to take her with it. A crowning moment for Rachel who, at the time of the episode, was still getting used to living on her own and not having everything handed to her.
In "The One Where Heckles Dies", Ross spends the entire episode trying to get Phoebe to accept evolution as a scientific fact, even though she accepts that it is a possibility but does not believe in it. Eventually, Phoebe snaps and completely shuts Ross down by telling him that the greatest minds in the world in the course of history once thought the world was flat and how people also believed the atom was the smallest thing to exist until they split it open and found even smaller things inside. She then gets Ross to admit that it's possible he could be wrong about his beliefs, causing her to say to Ross that she got him to crack and now she can't respect him because he didn't fully believe what he believed in. On top of this, she rubs salt in the wound by telling Ross that now he can't face his colleagues at work or himself. Ross falls into stunned silence at what just happened and quietly walks out.
"The One With Rachel's Book" had several Chandler's Crowning Moments of Awesome. He insists throughout the episode that they don't spend all the money they have on a big fancy wedding, being the much needed voice of reason. He steps down only at the end, willing to sacrifice his dream for Monica's brief moment of joy, because she longs for it so much. (She'd been crushed when her parents spent her wedding fund on a beach house). And finally, despite his commitment phobia, he reveals to Monica his dreams of domestic happiness. It has it all: Awesomeness and Heart-warmth with the strength of a Tear Jerker.
"The One With Rachel's Book" also counts for Monica. Before Chandler said she could have her wedding, she decided it wasn't fair to spend all his money like that and they would go for the cheaper option. Even when he insisted it was ok, she refused, putting his dreams for their future above her perfect day.
Monica: I don't want a big, fancy wedding. I want a marriage.
Chandler and Monica's relationship in itself is a Crowning Moment of Awesome. Both of them started out with extreme emotional baggage from traumatic childhoods. (She was the Unfavourite, he was scarred by his parents divorce and neglect) and struggled with relationships because of it. But they fell in love, got married, and did not break up once in the whole relationship. They overcame their issues together, Chandler's fear of commitment, Monica's inability to compromise, and ended up the most stable, happy couple of the show. Awwww. Crowning Moment of Awesome for the writing staff and actors too. Anyone who claims that it's not possible for main characters to have a marital (or long term) relationship in a long-running show without the standard drama of constantly breaking up and getting back together or having things coming between them to put off getting together to the end, etc. "to keep things interesting" just needs to watch this show. It can work. The writers and actors proved it.
Especially meaningful when compared to Ross and Rachel, the other main relationship in Friends. Ask most fans about R&R, and they'll say they were glad they got together but got tired of their continuing drama. Ask most fans about M&C, and they're consistently beloved throughout the series, proving that a stable couple can be as a popular as a angsty one.
Even though she didn't manage to win the game at the end since she was just short of the goal, Rachel successfully catching the football at the end of "The One With the Football".
Ross managing to force Paul (Bruce Willis) into letting him keep his job in "The One Where Paul's the Man" by making it known that he'd seen Paul dancing to "Love Machine" and giving himself a pep talk in the mirror. For the resident Butt Monkey of the series, Ross' ability to school John McClane was most awesome, indeed.
When Phoebe panics about the rats.
Phoebe: That's like ... (starts counting with her fingers) That's math I can't even do! What are we gonna do?
Mike: Well, I know this is gonna sound crazy, but, we could not let the box of rats ruin our lives.