to blow hot and cold
01
to change one's opinions about something often and quickly, sometimes being enthusiastic and other times indifferent or negative
![to [blow] hot and cold definition and meaning](https://cdn.langeek.co/photo/22105/original/?type=jpeg "to [blow] hot and cold definition and meaning")
Idiom
예시들
The manager blew hot and cold during the meeting, first praising the idea then criticizing it.
