power breakfast       
noun [ C ]  humorous uk/ˈpaʊə ˌbrek.fəst/ us/ˈpaʊ.ɚ ˌbrek.fəst/
 (商界人士的)工作早餐会
an occasion at which people eat breakfast while they are working and talking about business
  We met for a power breakfast at 7.30am.
 He liked to conduct business over power breakfasts at expensive hotels. 他喜欢在昂贵酒店的工作早餐会上办公。 
 - More examples
 - The hotel restaurant was the scene of numerous power breakfasts.
 - The Prime Minister is hosting a power breakfast of business leaders and politicians at Downing Street.
 - The power breakfast has always held a powerful appeal in the US.