Palmer [to McGee]: How can you not know who Waldo is?
Gibbs: Who's Waldo?

Gibbs: How do you feel about a drink?
Ducky: Depends. How do you feel about Scotch?
Gibbs: I prefer bourbon.
Ducky: Sold.

I believe the operative phrase is "Just when you thought you were out ..."

Ducky [to Gibbs]

Young Ducky: You're a man of few words.
Young Gibbs: I'll let you do all the talking.

Ducky: Jethro, did you ever think you'd see that face again?
Gibbs: I hoped not.

Jonny: You got old.
Gibbs: Try wiser.

Torres: What do I have to do to get a vacation in The Bahamas?
Jack: Have twins?

You do know you're in The Bahamas, right?

Clarence [to McGee]

Torres [to Gibbs]: You did all this by yourself. When?
Bishop: Probably when he was sturgeon fishing.

He was planning an escape of his own.

Gibbs

I don't think there's anything wrong with us. We just let life get in the way a little bit.

McGee [to Delilah]

Torres: What do you think, Gibbs.
Gibbs: I think someone ought to do something.

NCIS Quotes

Bishop: Seriously? How'd you get that?
Tony: Well, it's like Gorillas in the Midst. You'll get to understand his grunts.

Torres: When I break out the glass, maybe I can rip out the bars.
Bishop: With what? Your superhuman strength?