(idiomatic) I don't understand any of it; it makes no sense.

Believe me; rest assured.

(informal) A drink, especially an alcoholic one, taken as a stimulant or sometimes as a hangover cure; a restorative, tonic or bracer.

A response indicating that one is either unwilling or unable to perform a task, or that one is not guilty of something for which blame was implied.

(slang) Gin.

Overbearing; overpowering.

(slang, now rare) A strong alcoholic drink.

(in response to a question) I don't know!

Cultivated heartsease.

Said to demand that the listener take notice of a question or situation just mentioned, especially one that is particularly difficult to solve or explain.