Example 1:
-Person 1: John Claude has been spending less time with his girlfriend and more time playing PS3. Now, she's talking to other guys.
-Person 2: Damn...he's cutting up
Example 2:
-Person 3: I stopped showing up to class and my grade dropped to a B.
-Person 4: You're cutting up. That class is an easy A.
As there was little to do that day, and not many people were around, Dwayne and Jason decided to ask Johanna if she felt like cutting up a Snickers bar