Used to mean "having died" or "being in a state of death." Alternatively, it could be used more figuratively to mean "extremely tired" or "completely exhausted."
Bro. It's four A.M. and we're still doing Calc 2 ... seems like we're in mortation.
DAMN! I'm gonna rip asbestos out of the wall and eat it
To mix two unrelated things into something wierd, unexpected or exciting. Could be bad...could be good. You will know when it has happened.
Muffin Eater 1: "These chocolate muffins have been too close to the blueberry muffins. They taste like blueberrys"
Muffin Eater 2: "Your so right! There has totally been some cross-mojonation going on."