This is when some dick has his cell phone in his back pocket or just placed on the sofa and either they sat on it or someone else sat on it hitting the speed dialer to your cell phone. Of course they have no idea they called your number but you get to listen to all their BS.
Ever have your cell phone ring around 2:00a.m. you pick it up then answer, hello, hello, hello...all you hear is a bunch of people talking and perhaps loud music in the background. You think you recognize one or two of the voices but then you hear your name and they are saying some pretty rude things about you. Well then you've been "butt called".