rave about

rave about (something)

To give wildly enthusiastic praise for something. My mom was really impressed with your cooking—she spent the whole evening raving about it! Everyone raves about this movie, but I thought it was pretty mediocre to be honest.
See also: rave
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

rave about someone or something

 
1. to rage in anger about someone or something. Gale was raving about Sarah and what she did. Sarah raved and raved about Gale's insufferable rudeness.
2. to sing the praises of someone or something. Even the harshest critic raved about Larry's stage success. Everyone was raving about your excellent performance.
See also: rave
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

rave about

or rave over
v.
To speak or write about something or someone with wild enthusiasm: The dinner guests raved about the roasted duck. The critic raved over the new movie.
See also: rave
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
See also:
References in classic literature ?
What did you rave about? What people do rave about.
Hazard rave about Lake Geneva," Saxon recalled; "but I wonder if it is more beautiful than this."
When satisfied customers rave about the business using the Social Raves app, their rave is “shouted out” to their network by appearing on their wall as well as in their friends' news feeds, giving the business valuable exposure that leads to greater awareness, higher conversions, and new customers.