as in

[AlexAD]

Hello.

There is a couple speaking:

- What are you doing today?
- I'm busy tonight.
- Doing what?
- As in, I've got stuff to do. Busy.

I looked up my OALD and the Internet but I have found nothing about it.
Could you please explain what it means?

Thanks, Alex.

[bhaisahab]

Hello.

There is a couple speaking:

- What are you doing today?
- I'm busy tonight.
- Doing what?
- As in, I've got stuff to do. Busy.

I looked up my OALD and the Internet but I have found nothing about it.
Could you please explain what it means?

Thanks, Alex.

The person is saying something like "It's like this, I'm busy, I'm not telling you why".

[masterding]

Hello.

There is a couple speaking:

- What are you doing today?
- I'm busy tonight.
- Doing what?
- As in, I've got stuff to do. Busy.

I looked up my OALD and the Internet but I have found nothing about it.
Could you please explain what it means?

Thanks, Alex.

Not a teacher, Nor a native
"As in" is used to cite an example.
I have asked a similar question in this forum before.
http://www.usingenglish.com/forum/as...075-usage.html

[emsr2d2]

We sometimes follow "as in" with the definition of a word, almost as if we are suggesting that the listener simply did not understand the word we used so we try to explain it.

- What are you doing tonight?
- I'm busy.
- Busy?!
- Yes, busy. As in not free, not available, doing something else, occupied, engaged in another activity. Busy!

- Where do you live?
- In London.
- Do you live in a flat?
- No. I live in a house.
- A house?!
- Yes. A house. As in a building or structure, usually on more than one floor, designed for human habitation.
- Wow. A house in London. You must be rich!
- Rich?
- Rich. As in not poor, having money, etc etc ...

I think you get the picture. In the examples above, it would be used somewhat sarcastically.