Also, during Athena's transmissions, she needs to keep them from being identified. This results in them being broadcast in between ads for "Engorge", a faux brand of Penis Englargement Pills. It's funny enough on its own, but it goes into true CMOF territory when Mr. Shank (Who is identified as a "Notorious Ladies Man") is a spokesperson for it, after the player has already learnt that he is EXTREMELY gay.
Mr. Shank: Yeah so this shit is tits, guys. You should see what my bitch thinks of me now! Hi...Err...Her name is Chaz....Mina....and uh she...
Same with Dr. Ned's transmissions during Zombie Island:
Dr. Ned: I'm baking brownies, you want one? Oh shit, wait. I forgot about me trying to shove you off this mortal coil. Can't be givin' brownies to just any vengeance driven d-wad now can I? Hey, you know if zombies like brownies?
Dr. Ned: Well, y'got me outta bed, now I'm just pissed off. I love slippers. I live to wear them. Now I'm just gonna have t'kill ya.
Near the end of Zombie Island, the fake credits being interrupted by Undead Ned (HOLY F*#KING SHIT!!!)
At the end of Robot Revolution, Claptrap shoots Marcus twice in the back, making him fall over. Before dying (and presumably being resurrected at a New U), he raises his finger and weakly says "If it took more than one shot, you weren't using a Jakobs."
Anything the prison Claptrap in DLC 3 says before giving him the repair kit.
Claptrap: Let me out! She didn't tell me her age! Girls of all ages like candy!
Claptrap: When I get out of here, some of you bitches are getting stabbed. Matter of fact, I'm going to set the stabbing record on this planet.
Even better, after you let it out and it opens the door to a treasure room for you, follow it a bit longer. It rolls into the garage doing the usual Claptrap beatboxing dance routine, then it suddenly rolls under a giant electromagnet and finds itself lifted off the ground and permanently pinned to it.
Claptrap: Dammit. Just kill me.
A fair few of Moxxi's lines.
Moxxi in the Underdome: The Horde Wave's comin ta eatcha! OM NOM NOM NOM NOM.
As well as...
Moxxi over the Echo: It looks like you'll need to go through the back door. That's What She Said! HEYO!
Moxxi: Ahem. Anyway...
The starting town's Claptrap has his idle dialogue as him starting to wheel around and spin in place while saying the following:
Claptrap: Oh, come on, let's get down! Come on, everybody! Check me out, I'm dancin'! I'm dancin'!
Ned's Claptrap in the Zombie Island DLC is also quite hilarious:
Ned's Claptrap: *Dancing noises* Everybody's doin' the Claptrap! Ninja-kickin' zombies for the thrill! Chicks and shorties up in my grill! But the alive kind! *More dancing noises*
Marcus' lemony voiceovers to the intro and outro of 'The Zombie Island of Doctor Ned'.
Marcus: It was a dark and stormy night... on a distant corner of Pandora where few men dare to tread. With the journey to find the elusive Vault behind them, our fearless adventurers set off into the trees of-
Marcus: No more interruptions! So, they set out into the trees of Jakobs Cove; a land very much ravaged and forgotten by time. It was here that the scientist Dr. Ned, who is totally not Dr. Zed from the last story at all, tried to help all of mankind, but ultimately caused very bad shit.
Marcus: Yes. Probably a lot of it. You're adopted.
Some of the weapons have hilarious names, to the point that players colect them for that reason alone. Perhaps the best example is the Hyperion "Bitch" sub-machinegun, which -due to the naming system- comes with the funny names: "Hostile", "Violent", "Malevolent", "Relentless", "Ruthless", and "Twisted", all followed by the weapon title "Bitch". Let alone the fact that the red "Flavor text" says "Smack 'em".
Mr. Shank: Chaz, stop! Oh my God I am so ticklish there! Oh, did I hit the transmit button? ...Oh crap. Uhhh... Hey, yeah, so you're still gonna still try to infiltrate my palace? Death on your head and such.
Some of the things that Scooter comes out with:
'Ey, ah'm Scooter! I's named after mah sister! Hey, get you some wheels!
The Catch-a-Ride near Fyrestone is more busted than my momma's girl parts. Really appreciate you takin' a poke at that. The, uh, system, not my mom.
Which is even more Hilarious in Hindsight when you play the first game as Mordecai, then you find out in the sequel that Mordy had a thing going on with Moxxi between games. Sorry, Scooter, but your mom's hot.
Hey, Scooter says don't walk, drive! My daddy always said wheels were better than heels. Uh, he was paralyzed, though. Anyway, don't walk, drive!
Act all casual like when I say this. I'm gonna speak in code, so I hope you have the mental capacity to follow. Your 'lady friend' told me to send you to 'Moxxi's place' when you stopped by... If you know what I'm saying.
The cutscene where you rescue Athena and she tells you about how she suffered while being held prisoner by the bandits:
Athena: Your rescue is most agreeable. Thank you. But to be honest, mostly they just wanted to do my nails and talk about boys all the time. I almost sort of liked it here. They were like the sisters I never had because Atlas duped me into killing them— Wow, that got heavy, didn't it?
The Claptrap's New Robot Revolution DLC features the return of Commandant Steele as a Claptrapped boss encounter. She picks up from where she left off when she was killed by the Destroyer in the vanilla game, but stops short when she realizes something is wrong. "The key works! Soldier, get your team ready to go inside while I finish off ... Wait, where am I? What happened to the vault? WHY IS THIS HOLE HERE?!?"
(dying) Tell my brother... I'm better looking than he is...
Most of Patricia Tannis' dialog is hilarious when her Sanity Slippage starts setting in, but the follow dialog takes the cake:
"Day 653: Day 653. Today is my birthday. I've been alone for an incalculable amount of time. A convict accidentally crossed over into my encampment this morning, and I allowed him to look about before I shot him in the back several times. I was immediately filled with regret upon doing this, because the human contact, no matter how awkward, would have been nice. I've decided his name was Lesli, and he had a troubled childhood where people would make fun of him for having a girl's name, and the torment eventually lead Lesli to a life of crime and debauchery. There was a tattoo on his bum that looked not unlike the name, 'Patricia'. I might have imagined the tattoo. The experience compelled me to move the Vault key fragment I found so that it can be safe. It's extremely important. So I've given it to the man known as Crazy Earl. He's not crazy. He doesn't like people. The Vault key will be safe with him... I also gave him my underwear."
Tannis on the subject of Baron Flynt:
"After he left he took the artifact and punched my dog, which was the last piece of the Key to the Vault. The artifact, not my dog."
Episode 4 of Claptrap's web series has some backstage arguments:
Dr. Zed: Hey, Clap, I just need a moment of your time to discuss some script edits, maybe. Dr. Ned, who genuinelyisn't Dr. Zed with a fake mustache: Yeah, I'm confused, too. Are the zombies mine or— Moxxi:[Interrupting] Yeah, the script says I'm going to be wearing a skag-skin bikini. Claptrap: It helps the plot. Moxxi: But I'm going to be in the Arctic Ruins! Claptrap:Nipples are a part of the plot! Dr. Ned: Oooh, nipples! Ned and Zed:Nice![They high five]
Some of the game's Anti Climax Bosses, such as Slither. After a two or three quest arc building up the threat of a new Bandit religion based around some powerful thing named Slither, you are dispatched to kill it. A bright blue Scythid Crawler with no backup.