Idiom: On The UpCheck definitions of...ontheupMeaningsHow to pronounce "on the up":AU Your browser does not support the audio element. Rising; becoming greater in number or magnitude.While the ball is rising.A-Z Proximitieson the squareon the streeton the tableon the toss of a coinon the trot on the up on the uptakeon the wagonon the waneon the warpathon the way