Student or Learner
What does the term "What are you in for?" means?
Sounds like something you'd say in jail or maybe the doctor's waiting room.
What crime did you get convicted of to be here?
What ailment do you have that makes you need to see the doctor?
I'd assume the first, though: Why are you in jail?
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
Man A in pub: "I'm in for it, now"
Man B in pub: " ... in for what?" (What are you in for?)
Man A: "I'm in for a tongue lashing when I get home to my wife."
bieasy: "I think I'm in for it now."
friend: "What are you in for?"
bieasy: "I'm in for a lecture from the teachers about not giving sufficient context with my questions."
Like I said, "It depends on the context".
I definitely think of the jail context. You can say this jokingly to a co-worker or someone who finds themselves in the same lousy situation you are in.
Absolutely I agree with bhaisahab. It depends on the context.