full Britney 

Accidental (or perhaps intentional) opening of legs while wearing a skirt or dress without undergarments.

And when she stepped out of the car, it was obvious that she went full Britney tonight

full Britney by OleNassau February 24, 2009

the full Britney 

Shaving off your long hair on a whim, like Britney Spears did.

My hair is starting to look like a mullet, so I think I'll give myself the full Britney.

the full Britney by mtizzo April 30, 2007