Be in for something phrase informal
If you are in for something, an unpleasant or unenjoyable thing are going to happen to you or affect you.
It looks like we're in for it because we didn't meet the sales target this month
You’ll be in for it, if the teacher finds out.
You’ll be in for it, if mom knows you're lying to her.
Be a part of something for a certain reason or goal. They usually use "be in it for".
I don't care about the salary of this job. I'm in it for gaining my experience.
To be detained for some reasons
He is in for tax evasion many times.
To punish someone or something harshly
Once something has been done, you can do nothing but face the consequences.
White lie
Act in a way that is likely to cause problems for you
The verb "be" should be conjugated according to its tense.
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.