The next level of chilling, or the intense version of chilling. Chilling so hard you might as well be on the bottom of the ocean. Not just sitting in a chair conversing with friends. Slouch down, shut your mind off, and sit there like a fucking rock. Best done in a big ass armchair. Eventually, someone will ask if you're spacing out or some shit, and you know what to tell them. "I'm chillin' like a motherfucker."
Katie: Ed, what are you doing?
Ed: *comes out of stupor* What?
Katie: Are you asleep?
Ed: Hell no. I'm chillin' like a motherfucker.
Ed: *comes out of stupor* What?
Katie: Are you asleep?
Ed: Hell no. I'm chillin' like a motherfucker.
by neo! January 13, 2010
Slang term for Masturbating. Made popular by Martin Lawrence in his 1994 stand up comedy special, "You so Crazy."
My homeboy's mom walked in on him chillin like a motherfucker while watching Debbie Does Dallas. She screamed just as he busted a nut.
by Diamond_Dave January 3, 2008