What does sitchain mean and how do you pronounce it?

There is no word "sitchain" in the English language. It is likely a misspelling or a made-up word.

If you are trying to describe a specific action or object, please provide more context.

For example, you could be thinking of:

* "Sit chain" - This could be a chain that is used to sit on, perhaps for a swing or other outdoor activity.

* "Sitch-in" - This is a misspelling of "sit-in", which is a form of protest where people sit down in a public place to bring attention to a cause.

* "Situation" - This word describes a set of circumstances or a state of affairs.

Please clarify your question and I will be happy to help!