rouser noun 4forms 1phrases 1 noun4 •One who rouses another from sleep or passivity. •Something very exciting or stimulating. •(Australia) A roustabout.They are all shearers, or at least they say they are. Some might be only ‘rousers.’ — 1896 •(informal, no longer used) A stirrer in a copper for boiling wort. formsrousers Phrases with rouser rabble rouserSomeone or something that tends to inspire mobs; something controversial or provocative.