Grey's Anatomy, Season 6

[Alex, Derek and Arizona are waiting on a CT myelogram]

Arizona:
McDreamy.

Derek:
I'm sorry?

Arizona:
I get it now the whole, you know, "McDreamy" thing. I didn't, I didn't get it before. But now I get it. You know they call you that, right? [Alex rolls his eyes]

Derek:
[smiles] Yes.

Arizona:
I'm involved, by the way, in case you thought that I was just coming on to you, because I was not. Plus I heard that you got married so congratulations.

Derek:
Yes, thank you.

Alex:
[snickers] You wrote some hokey crap on a post-it note in the residents' lounge. Sorry, but until you're sweating it out in a morning coat with a ball of white taffeta coming at you, you're not really married.

Derek:
[chuckles] Oh, I've consummated mine. I consummate mine all the time. How's that going for you, Karev? Girls talk. You might want to consider that the next time you judge my post-it.