got their jiggy on

Had sex with someone

I see Jack got their jiggy on last night with Erin.

Baby steps

To make progress on something in small increments. From the movie "What About Bob?"

Bob: I can't do that. It's too big!
Dr. Leo: Baby steps Bob. Baby steps.

Ninjacy

Like "piracy" but faster and more stealthfuly done. You stole it so fast the victim still has the copy in his hands. Used in connection to "stealing" a digital copy of something (e.g. music)

Man, ninjacy is way cooler than piracy.

WTVF

What The Very F*ck!
Used when WTF is just not strong enough to express your exasperation.

Bob: Can you make me a sandwich Jane?
Jane: WTVF Bob! Make it yourself!