Definition of:

BUTRface:

BUTR is short for Baby Under The Ribs.. that's the secret 8th baby the crazy octo-mom (please tell me you know what i'm talking about) had hiding under her ribs. doctors didn't even know it was there! BUTRfaces are sneaky, but cute. and retarded.

example:

I asked him if he wanted to go for a pinkberry, but he got all BUTRface on me. i mean, it's a FUCKING PINKBERRY YOU DON'T HAVE TO THINK SO FUCKING HARD ABOUT IT! but he came anyways.