Assuming that we're still talking about CUT UP as per the title and not caught up which was actually what was said in the sound file, I would like to add the following for anyone else who stumbles on the thread and is interested in the meaning of cut up:

In addition to the other accepted uses (to cut into pieces, to be upset etc), British English also has the phrasal verb "cut up" in the context of bad driving. For example:

"Did you see that idiot in the BMW? He just cut me up and now he's gone across all three lanes without indicating!" It basically means to swerve or pull in front of someone much too quickly or closely (i.e. dangerously)