1. [n]  an extravagantly enthusiastic review; "he gave it a rave"
2. [n]  a dance party that lasts all night and electronically synthesized music is played; "raves are very popular in Berlin"
3. [v]  praise enthusiastically; "She raved about that new restaurant"
4. [v]  talk in a noisy, excited, or declamatory manner
5. [v]  participate in an all-night techno dance party

1. \Rave\, n. [Prov. E. raves, or rathes, a frame laid on a
   wagon, for carrying hay, etc.]
   One of the upper side pieces of the frame of a wagon body or
   a sleigh.
   

2. \Rave\, v. i. [imp. & p. p. {Raved}; p. pr. & vb. n.
   {Raving}.] [F. r[^e]ver to rave, to be delirious, to dream;
   perhaps fr. L. rabere to rave, rage, be mad or furious. Cf.
   {Rage}, {Reverie}.]
   1. To wander in mind or intellect; to be delirious; to talk
      or act irrationally; to be wild, furious, or raging, as a
      madman.
            In our madness evermore we rave.      --Chaucer.
            Have I not cause to rave and beat my breast?
                                                  --Addison.
            The mingled torrent of redcoats and tartans went
            raving down the valley to the gorge of Kiliecrankie.
                                                  --Macaulay.
   2. To rush wildly or furiously. --Spencer.
   3. To talk with unreasonable enthusiasm or excessive passion
      or excitement; -- followed by about, of, or on; as, he
      raved about her beauty.
            The hallowed scene Which others rave on, though they
            know it not.                          --Byron.
   

3. \Rave\, v. t.
   To utter in madness or frenzy; to say wildly; as, to rave
   nonsense. --Young.
   

[WPI] 1. To persist in discussing a specific subject.

2. To speak authoritatively on a subject about which one knows very little.

3. To complain to a person who is not in a position to correct the difficulty.

4. To purposely annoy another person verbally.

5. To evangelise. See flame.

6. Also used to describe a less negative form of blather, such as friendly bullshitting. "Rave" differs slightly from flame in that "rave" implies that it is the persistence or obliviousness of the person speaking that is annoying, while flame implies somewhat more strongly that the tone or content is offensive as well.

[Jargon File]