English (The Big Bang Theory)

Sheldon: This is not what it's look like. This is not what it's look like.
Leonard: What are you grinding about?
Sheldon: Penny's brain teaser this morning. She and Koothrappali emerged from your bedroom. She is dishevelled, and Raj is only dressed in a sheet. ...
Leonard: Just let it go, Sheldon.
Sheldon: If I could, I would. But I can't, so I shant.

Penny to Raj: hey, what are you doing, quick draw?

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Season 5, Episode 1 - The Skank Reflex Analysis