Defines the size of something big as in a person or an object. As in when you go to the movie theater and when you buy the biggest size of popcorn or drink you get a Free Refill with it.
Guy 1: F*** no I'm not gonna hit that?
Guy 2: Why not?
Guy 1: She's like Free Refill size!
When you get crazy high one night, and it comes back to haunt you the next day. Coined by the coolest mexican in the states (i'm legal, don't worry).
Guy 1: Dude, did u go outside and get blazed?
Guy 2: Fuckin free refill man, and I didn't even pay for it.