Here's what to say when your crazy liberal sister-in-law starts ranting and raving about Trayvon Martin.
The Senate minority leader was raving mad, and spouting nonsense.
But young males, 18 to 34, were relatively unaffected by all of his ranting and raving.
late 15c., "delirious, frenzied," present participle adjective from rave (v.); sense of "remarkable, fit to excite admiration" is from 1841, hence slang superlative use.
early 14c., "to show signs of madness or delirium," from Old French raver, variant of resver "to dream; wander here and there, prowl; behave madly, be crazy," of unknown origin (cf. reverie). The identical (in form) verb meaning "to wander, stray, rove" first appeared c.1300 in Scottish and northern dialect, and is probably from an unrelated Scandinavian word (cf. Icelandic rafa). Sense of "talk enthusiastically about" first recorded 1704. Related: Raved; raving.
"act of raving," 1590s, from rave (v.). Meaning "temporary popular enthusiasm" is from 1902; that of "highly flattering review" is from 1926. Sense of "rowdy party" is from 1960; rave-up was British slang for "wild party" from 1940; specific modern sense of "mass party with loud, fast electronic music and often psychedelic drugs" is from 1989.
: rave notices
To commend or applaud enthusiastically: He's raving over this new book (1816+)
[rave meant ''party'' in British slang by 1960]