Any use of the "perfect storm" metaphor.

"It doesn't take a rocket scientist/brain surgeon."

Saying, "Not that there's anything wrong with that" after the subject of homosexuality has been raised.

Structuring rhetorical questions this way: "..., no?" Example: "This would obviate the need for a border fence, no?" (That means you, Mickey Kaus.)

"I'll be back," in Arnold Schwarzetcetera accent.

I'm still bullish, however, on "mix in," as in, "Hey, NASCAR, mix in a right turn."

"Not that there's anything wrong with that" is less a comment about homosexuality and more a code for "Wasn't Seinfeld great? I miss it."