(transitive) To strike or bump (someone or something) out. / (transitive, idiomatic) To render unconscious, as by a blow to the head. / (transitive, idiomatic) To put to sleep.

(chiefly Australia, Britain, New Zealand, slang) A brothel.

An informal game involving physical activity, usually football.

(intransitive, often followed by with) To spend time companionably; to hang around. / (transitive) To engage in a relaxing activity in; to hang around in.

(transitive) To hit or knock (something or someone), intentionally or accidentally, so that it falls. / (transitive) To demolish.

(colloquial) To put together, fabricate, or assemble, particularly if done hastily or temporarily. See also knock together.

(idiomatic) To assemble something quickly; to knock up.

(idiomatic, US) To take a customary action to ward off some misfortune that is believed to be attracted by a presumptuous statement.

(idiomatic, US) Hopefully; a self-directive to undertake the customary action to ward off bad luck.

The medical condition genu valgum