When the breasts of a woman are so large that they appear either physically impossible, unstable, or dangerous to others.
Damn boy! Look at those mountain titties. I think we found everest!
Don't let a girl with mountain tities like those motor boat you. It'll be your last breath.
Don't let a girl with mountain tities like those motor boat you. It'll be your last breath.
by Oreonsam May 17, 2016
Get the mountain titiesmug.