What is Warmer-upper?

Warmer-upper definition and meaning on Dictionary terms:
noun Informal.
something that provides one with invigorating warmth: Hot soup is a good warmer-upper after skiing.
something that serves to warm up an audience or group of participants before a main event: Radio stations played martial music as a warmer-upper before the prime minister’s speech.


reference: www.dictionary.com/browse/warmer-upper