knock on wood
US /nɑk ɑn wʊd/
UK /nɑk ɑn wʊd/
1.
said to ward off bad luck, often while knocking on a wooden object
:
•
I haven't had a cold all winter, knock on wood.
•
Our business has been doing great this year, knock on wood.
said to ward off bad luck, often while knocking on a wooden object