(idiomatic, euphemistic) A recovering alcoholic, especially one who is a member of the organization Alcoholics Anonymous.

(slang) The penis.

An animal that is regarded as a good friend, usually a dog or a horse.

plural of four-legged friend

plural of best friend forever

(idiomatic) Friends who have authority or influence and who can ensure that one's interests will be protected or furthered.

plural of fair-weather friend

plural of fair weather friend

plural of partial false friend

bacterial pneumonia.