Heated up and Work on

Heated up adjective - Made warm or hot (`het' is a dialectal variant of `heated').

Work on and heated up are semantically related. in irritate topic. In some cases you can use "Work on" instead a verb phrase "Heated up".

Work on verb - To exert effort in order to do, make, or perform something.

Heated up and work on are semantically related. Sometimes you can replace phrase "Heated up" with "Work on", this terms are similar.