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.
To rush wildly or furiously.
To attend a rave (dance party).