iPhone butt: When you see a girl who you think has a decent butt until you realize she has an phone in her back pocket.
Person 1: Hey man look at that girl she got a donk.

Person 2: Naw man that iPhone butt. See that phone in her pocket?

Person 1: Man that's whack.
by johnthedoe March 5, 2012
Get the iPhone butt mug.