Howard: (imitating Dick Van Dyke's cockney accent) Well, Gorblimey. You look like a thousand tuppence. Don't he, Mary Poppins?
Bert: Are you gonna talk like that all night?
Howard: Jiff willikers, I am.
Bernadette: Isn't he cute? He's gonna get a spoonful of sugar later.
Howard: And I'm gonna sweep Ms. Poppins' chimney.

Leonard: So, here we are. On Halloween. On this couch. Does it ring any bells?
Penny: Really? We're still doing this?
Leonard: I'm just surprised you don't remember our first kiss.
Penny: (sighs) Fine. It was on Halloween.
Leonard: Are you agreeing just to shut me up?
Penny: You got another way? I'm all ears.

Bert: Really? An arranged marriage?
Raj: Yeah. I know how it sounds.
Bert: It sounds awesome. Is that just an Indian thing, or can I get a piece of that?
Anu: You know the woman has a choice, right?
Bert: There's always a catch.

Amy: (imitating Bernadette) Happy Halloween.
Sheldon: Who wants to see a magic trick? Oh, that's right. No one.
Bert: Ha! They're you.

Bernadette: What do you think you're doing?
Amy: I thought it was clear. I'm being unnecessarily hurtful but with a sweet voice.
Sheldon: And I don't understand what's going on because I went to MIT.

Leonard: Okay, guys, I think that's enough.
Raj: Hold on. I'm the judge here, and I'm going to allow it.
Penny: Raj, take a break.
Anu: Hey, free speech. Right back there somewhere.

Howard: You know what, guys? You got us. Congratulations. Now why don't you go back to your apartment and put on your other costumes.
Amy: Oh, but it's so far away, and I have such teeny, tiny legs.

Bert: I don't get invited to a lot of parties. Is this a good one?
Stuart: Oh, yeah.

Bernadette: Can't believe Amy did that.
Howard: Oh, come on. You thought it was funny when I dressed up as Sheldon.
Bernadette: That was totally different.
Howard: How?
Bernadette: That didn't hurt my feelings.

Howard: Well, for what it's worth, I didn't think it was a very good impression of you.
Bernadette: Really? You don't think I have an annoying high-pitched voice?
Howard: No, not at all. In fact, I find your voice quite melodious.
Bernadette: Mm-hmm. And you don't think I'm unnecessarily hurtful?
Howard: What? I'm sorry. I-I couldn't hear the question. I just heard the music.

Penny: Well, people came, they ate, they vowed to never speak to each other again. I think it was a successful party.

Penny: No, it does matter. Okay? You were right. It was Halloween. I was dressed as a cat, you were a hobbit. It was right there on that couch.
Leonard: Why didn't you just say that?
Penny: Because I always hated that was our first kiss. I was drunk, and I was still with Kurt, and I was using you to make myself feel better. I just wanted our first kiss to mean something. That's why I said it was the one on your birthday.
Leonard: I like that. We'll make that our official first kiss.

Stuart: That was beautiful.
Penny: Mm.
Leonard: What are you still doing here?
Stuart: I was in the bathroom. Guacamole didn't agree with me.

Sheldon: I think Howard hurting my feelings has in some ways made me a better person.
Amy: Hmm. Look at you, improving on perfection. How so?
Sheldon: As you were eating that Danish, I wanted to point out that the Danish isn't Danish at all. It was imported by Austrian bakers during a labor dispute in the 1800s. But I chose not to, because I didn't want to be the kind of fella who foists unwanted facts about European pastries on the unwilling.
Amy: Huh. That's actually interesting.
Sheldon: Sorry. Now you'll never know.

Howard: Hey, guys, I need your help. Bernadette's still pretty upset about your costumes.
Sheldon: She's upset? Those pants I wore to make fun of you were so tight, I risked a testicular hernia.