An enthusiastic review (such as of a play).

An all-night dance party with electronic dance music (techno, trance, drum and bass etc.) and possibly drug use.

The genres of electronic dance music usually associated with rave parties.

To wander in mind or intellect; to be delirious; to talk or act irrationally; to be wild, furious, or raging.

To speak or write wildly or incoherently.

To talk with unreasonable enthusiasm or excessive passion or excitement; followed by about, of, or (formerly) on.

“He raved about her beauty.”