The meaning of the phrase ‘(To) blow hot and cold in the same breath'
is to be favourable and unfavourable by turns. A person having such type of nature is quite unpredictable.
1.I don't like Meera, she is in the habit of blowing hot and cold in the same breath.
2.You can never trust a person who blows hot and cold in the same breath.
3.These days, all the political parties blow hot and cold in the same breath a making it difficult for the common to understand their actual point of view.