warm up
phrasal verbwarm up 
- to prepare for physical exercise or a performance by doing gentle exercises or practice related noun warm-up
 - (of a machine, an engine, etc.) to run for a short time in order to reach the temperature at which it will operate well
 
warm up | warm somebody/something  up 
- to become more lively or enthusiastic; to make somebody/something more lively or enthusiastic
- The party soon warmed up.
 
 
warm something  up  
- to heat previously cooked food again for eatingTopics Cooking and eatingc1