AWYW = And whatever you want.
Used by fatties (or just those with ravenous appetites) after enumerating a laundry list of desired items, to indicate that all the aforesaid items are meant exclusively for them.
Dustin: I'm gonna run by Coffee Bean on my way home. Need anything?
Drew: A large White Chocolate Dream ice blended, butter croissant, blueberry muffin, and chocolate danish. AWYW.