1 definition by Matthew Morrison

Top Definition
1) Unbelievable; insane.

2) Good, bad, or extremely out of the ordinary.

Note: Both definitions an be used in both positive and pejorative sense.
I did horribly on that test. Question 5 was on crack.

I'm so happy I got promoted. My new salary is on crack.

My cell phone is on crack. I need a new one.
by Matthew Morrison July 20, 2006
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