If I had one, mine would be "Brown Dynamite."

Raj

Leonard: Sheldon, Canada is not going to invade California.
Sheldon: Yeah, really? You think those hippies in Washington and Oregon can stop them?

Leonard: So, I've got a gunshot wound. That's pretty bad-ass.
Penny: No, you've got a Reebok with a gunshot wound and an ouchie on your pinky toe.

I can't believe I bought my soul mate at Glendale Galleria.

Raj

Bernadette: Who's Siri? Is he dating someone new?
Howard: Yes. His phone.
Bernadette: Is that cute? Or, creepy?

Can you be more specific on how my eyebrows are "stupid." No, never mind. It's right here.

Leonard

Raj: I'd like for you to call me sexy.
Siri: [chimes]From now on, I'll call you sexy. Okay?
Raj: Okay!

Her heart's full of love, no one cares what's in her mouth.

Amy

It's color-coded. Red means "fix right away" Yellow is "eh, whenever you get a chance." And, green is "I could probably learn to live with it."

Leonard

She is gonna break his heart.

Howard

[Chuckles] Look at that. There's finally a women in your life you can talk to

Howard

Raj: Whoa! What's your hurry, cowboy? Savor the moment.
[Raj and Howard slowly remove the plastic off Raj's new iPhone 4s]
Howard: Oh, yeah.

The Big Bang Theory Season 5 Quotes

You can't blame yourself. When your prefrontal cortex fails to make you happy promiscuity rewards you with the needed flood of dopamine. We, neurobiologists, refer to this as the skank reflex.

Amy

I feel like two totally different people. Dr. Jekyyl and Mrs. Whore.

Penny