hot up meaning and definition

HOT UP verb

Definition of hot up (verb)

1. gain heat or get hot
   • "The room heated up quickly"
   • synonyms: heat, heat up
   • antonym: chill
2. make more intense
   • "Emotions were screwed up"
   • synonyms: heat up, screw up
3. make more powerful
   • "he souped up the old cars"
   • synonyms: hop up, soup up