ESPN columnist - old movie reference?

ESPN’s columnist Gregg Easterbrook, “Tuesday Morning Quarterback,” said this in his most recent column:

OK, I got nothin’. What old movie is this?

From a caption in the article: “Watch “The Thin Man” for the old-movie line sampled in Cheerleader of the Week.”

So I guess that’s it…

Well, shit. I was reading the “Boss Button” version with no pictures.