(idiomatic) A balanced position between two opposite extremes.

(music) A genre of rave music typified by a very fast tempo and a bright, cheerful sound, often coupled with solo vocals and sentimental lyrics.

plural of happy ending

(Australia) Used to express displeasure at someone else's incompetence.

plural of happy pill

plural of happy camper

(informal) A contented, satisfied person or animal.

plural of happy-clappy

(slang, humorous) An antidepressant.

An expression used during Ramadan to wish someone a happy time.