1. (v. i.) To rave in violent, high-sounding, or extravagant language, without dignity of thought; to be noisy, boisterous, and bombastic in talk or declamation; as, a ranting preacher.

2. (n.) High-sounding language, without importance or dignity of thought; boisterous, empty declamation; bombast; as, the rant of fanatics.

absurdity act amphigory assault attack babble babblement balderdash barbarize batter bawl out be angry be excitable be insane be livid be pissed bellow berate bibble-babble blabber blather blow a gasket blow up bluff bluster bluster and bluff blustering boastfulness boil bombast bombastry bounce brag bravado browned off brutalize bully bullying burn bustle butcher carry on catch fire catch the infection chafe claptrap come apart debate declaim demagogue destroy dote double-talk drivel drool elocute excite easily expatiate explode expound fanfaronade fiddle-faddle fiddledeedee fire up flame up flare up flash up flatulence flip flummery flurry fluster folderol fret fudge fume fuss fustian gabble galimatias gammon gasconade get excited gibber gibberish gibble-gabble go into hysterics go on gobbledygook grimace ham ham it up hammer harangue have a conniption have a demon have a tantrum hector hectoring highfalutin histrionics hit the ceiling hocus-pocus hold forth hot air huff humbug intimidate intimidation jabber jargon jaw lash lay waste lecture lexiphanicism loot maul mouth mug mumbo jumbo narrishkeit niaiserie nonsense orate out-herod Herod overact overdramatize pack of nonsense palaver perorate philippic pillage pissed off pomposity pontificate prate prattle preach rabble-rouse rag rage rail raise Cain raise hell raise the devil raise the roof ramble ramp rampage rant and rave rape rate rave read ream out recite rhapsody rhetoric rigamarole rigmarole riot roar rodomontade roister rollick rubbish ruin run a temperature run amok run mad sack savage seethe side simmer sizzle skimble-skamble slang slaughter slaver slobber smoke smolder soapbox sow chaos speak spiel splutter spout sputter stew storm stuff and nonsense stultiloquence swagger swashbuckle swashbucklery take fire take on tear tear around terrorize theatrics throw a fit throw away tirade trash trumpery trumpet tub-thump turgidity turn a hair twaddle twattle twiddle-twaddle underact vandalize vapor vaporing violate vituperate vociferate waffling wander wreck