plural of hi-bye friend

(informal) A person with whom one has only a very casual and superficial friendship.

(idiomatic, humorous) Friends who have underworld connections or are involved in shady underdealings.

Alternative form of fair-weather friend.

(Internet slang) A suggestion that an individual could learn something using an Internet search engine, rather than asking others.

In a civilian aircraft: a transponder that responds by sending a code identifying itself.

(idiomatic) One who is friendly, helpful, or available only when it is advantageous or convenient to be so.

plural of four-legged friend

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

(slang) The penis.