knock on wood

idiom
UK /ˌnɒk ɒn ˈwʊd/
US /ˌnɑːk ɑːn ˈwʊd/

You say this and touch wood to hope something good stays good.

I've never been sick this year, knock on wood.


OTHER MEANINGS

2. A spoken phrase used to avoid bad luck after saying something too hopeful.

We haven't had any problems so far, knock on wood.

3. The act of tapping on a wooden object for good luck.

She knocked on wood before talking about her winning streak.

4. A way to say you hope a good situation continues.

Knock on wood, the weather stays nice for the picnic.