knock on wood

Superstitious luck gesture

Knock on wood is a phrase spoken after mentioning good fortune or expressing hope, accompanied by the gesture of rapping knuckles on wood—a superstitious act meant to ward off bad luck or prevent jinxing oneself: I haven't been sick all year, knock on wood.

The British equivalent is touch wood.

When no wood is available, people often mime the gesture or tap their own heads.

Opposites
superstitious attitude

knock on woodtempt fate

Recklessly invite misfortune

speak too soon · hubris · overconfidence · take for granted · presumption

epistemic stance toward luck

knock on woodguaranteed

Promised with certainty

in the bag · certainty · no doubt about it · bet the farm

protective vs. jinxing speech acts

knock on woodcurse

Invoked harm through words

hex · jinx · evil eye · famous last words

Family

wood, knock, wooden, knockout, woodland, woodwork, knocking, knocked, knocker

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G