hot up
phrasal verbPart ofhot
hot up — phrasal verb
1. to become more exciting, intense, or busy; or to make something warmer in temper
1.phrasal verb
Definition
to become more exciting, intense, or busy; or to make something warmer in temperature.
Example
The election campaign hotted up in the final week before polling day.
Élise asked the band to hot up the music so the crowd would start dancing.