Sheldon: Amy, I didn't want it to come to this. But you have left me no choice but to employ the most passionate, seductive dance known to man. The flamenco.
*Sheldon dancing*
Amy: For God's sake, you're ridiculous.
*Amy leaves the apartment*
Sheldon: (To Leonard and Penny) You guys are aroused, right?

Leonard: She took my Where's Waldo.
Sheldon: Well, no, no, he's over there.
Leonard: Oh, yeah, there he is.

Raj: If we're all gonna die, why am I eating so much kale?

Leonard: Sheldon, this is not a big deal. It's a little white lie, everyone does it.
Raj: Not me, I'm a 100% honest in all of my relationships.
Howard: And how single are you right now?
Raj: Eating-cake-on-the-toilet single.

Sheldon: Why would she keep something from me, you know? I shared my body with that woman. And my Netflix password. They recommended "Stella Got Her Groove Back" because of her.

Sheldon: Oh, I don't mind, I'm very good at complaining. If it were an Olympic sport, I'd complain about what a stupid sport it is and then I'd take home the gold.

Penny: I can't believe I'm saying this, but can we watch the news or something?

Howard: I'm serious, JPL's actually developing a robot arm that could grab an asteroid before it hits us.
Leonard: So their plan for saving the Earth from Armageddon is hoping a bunch of scientists can catch a ball?

Sheldon: Everybody wants to spend more time with me. I'm like a man made of sugar in a world of ants.

Leonard: Which is why I got you this Pink Power Ranger. Put it anywhere you like.
Penny: Okay, but you may feel some discomfort.

Leonard: Buddy, buddy, listen, nothing bad is going on, she just she just didn't want you to know that the work on her apartment was finished a couple weeks ago.
Sheldon: I don't understand.
Leonard: She's enjoying living with you and she didn't want it to end early.
Sheldon: So, she's deceiving me in order to spend more time with me?
Leonard: Yes.
Sheldon: Oh. Well, I feel both flattered and hurt. Like when people say I look like that skeleton from Nightmare Before Christmas.
Raj: Oh my God, that's who you look like.

Sheldon: Hit it.
*Howard playing keyboards and Raj playing guitar*
Howard: (Singing) For joy and fun, there's no better manner, than to fly a pennant, flag or banner
Raj: What fills my heart, and makes my eyes moist, sending a flag, up a pole on a hoist.
Raj & Howard: Fun with Flags, Fun with Flags
Howard: Oh! Say can you see.
Raj: It's Fun with Flags.
Raj & Howard: Fun with Flags.

Amy: As you may notice, just one of the changes around here is our new house band.
*Howard plays a keyboard solo*
Sheldon: Who haven't learned their place yet.

Amy: We're also coming to you live from a different apartment.
Sheldon: Dr. Fowler and I began an experiment in living together after her apartment became water damaged. This is our friend Penny's place. You may remember her from our episode "Flags: And the People Who Don't Understand Them."

Sheldon: So, in the spirit of cohabitation, the theme of today's episode is flags of two regions coming together as one.
Amy: Such as the flag of St. Kitts and Nevis.
Sheldon: So, let's roll up our "sleevis" and get to know Nevis.
*Howard plays a rimshot sound*
Sheldon: Well, I-I like that, but next time check with me.