(informal, chemistry) Any chemical process or technique that is relatively low-tech, and does not require specialist equipment or skills, or precise measurement or control.

(finance, derogatory, obsolete) A stockbroking firm which takes small orders from clients and takes them on its own account rather than actually transmitting them to the market. Prevalent in the US 1870s to 1920s; often set up as shop-fronts in the 1920s.

(humorous) Pronunciation spelling of merci beaucoup.

(idiomatic) To rain heavily

simple past tense and past participle of kick the bucket

(idiomatic, slang) A machine, especially an automobile. Implies that the machine is clunky or unreliable.

(idiomatic) Something of little importance, especially an inconsequential effort or action as compared to a huge problem.

A type of bong for smoking marijuana, usually consisting of a bucket or similar device for holding water, a large bottle with its bottom cut off, and a socket for holding the marijuana in the cap.

(astronomy, idiomatic, informal) A reflecting telescope, especially one with a relatively large aperture and suitable for observing deep sky objects such as nebulae and galaxies.

The long line of people, in a primitive firefighting technique, who pass buckets of water hand-to-hand from the nearest water source to the site of a fire, in an attempt to douse it.