The Big Bang Theory, Season 4

Sheldon:
Where are you going?

Leonard:
I'm having dinner with Priya at Raj's. I think Howard's gonna be there; you wanna join us?

Sheldon:
But tonight's Thursday. On Thursdays, everybody comes over here and has pizza, or a reasonable facsimile prepared by someone claiming to be Luigi, but who sounds suspiciously like Jackie Chan.

Leonard:
Can we make a one time exception for tonight?

Sheldon:
We could. We could also stop using the letter M, but I think that idea is isguided and oronic.

Leonard:
Just come with me to Raj's.

Sheldon:
I don't want to go to a party.

Leonard:
It's not a party; it's the same group of people who hang out here hanging out over there.

Sheldon:
I'm sorry, but five people eating and chatting is a party.

Leonard:
How come it's not a party when we do it over here?

Sheldon:
Because we don't throw parties.