Sprout wings phrase sarcastic
To suddenly behave in a friendly, helpful, obedient, etc. manner, like an angel.
John is sprouting wings today! He has done whatever I told him to do without complaining.
Mary used to be abrupt with me, but yesterday she sprouted wings!
The verb "sprout" must be conjugated according to its tense.
The origin of this phrase is not clear.
To punish someone or something harshly
He's a really strict teacher, so he'll definitely lower the boom on you if you don't do your homework.