off-topic , OT (skrót) slang

I felt like I was taking a little bit of a risk going so far off topic.

It's been done to death and way off topic.

Slightly off topic but something I have been thinking about for a while now.

This is getting complete off topic now, so to clear up before we move back to 3D; 1.

For one, he let the conversation stray way off topic.

A bit off topic perhaps, but what is "Rally technologies?"

Off topic- can be moderated if you feel like it.

"Before we get too far off topic, can I ask one question?"

You almost look out of place, and a degree or two off topic.

Now, I have to go a little bit off topic.