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."