knock on wood

US /nɑk ɑn wʊd/
UK /nɑk ɑn wʊd/
"knock on wood" picture
1.

toucher du bois

said to ward off bad luck, often while knocking on a wooden object

:
I haven't had a cold all winter, knock on wood.
Je n'ai pas eu de rhume de tout l'hiver, je touche du bois.
Our business has been doing great this year, knock on wood.
Notre entreprise se porte très bien cette année, je touche du bois.