Cutting on the TV

When you cut something like a piece of paper or a brick on the tv.

1.
Jared: what are you doing?
Alex: what does it look like I'm doing? I'm cutting on the TV.

2.
Ian: this table is uneven, I cant cut well for my arts and crafts.
Josh: oh shit dude, just cut on the TV.

3.
Bryce: Yall ever cut on the TV?
Carl: What the fuck does that mean?
James: You know, it's when you cut on the TV.