shape-up noun 4shape up verb 3forms 4 noun4 •HairstyleI noticed my shape-ups weren't as nice as some of my friends from the city. — 2005 •Activity to get someone or something back into shape.Shower shape-ups have two advantages. — 1990 •Gathering of workers to be picked for a job.At each shape-up there is a new employment. — 1957 •Alternative form of shapeup (any sense) shape up verb3 •To take shape; to transform into or become.The fog has vanished and it's shaping up to be a beautiful day. •To improve; to correct one's bad habits or behavior.He'd better shape up soon, or he'll fail the class. •(slang) To gesture or posture threateningly; to approach as if to fight; to pose to intimidate. formsshaped up · shaping up · shapes up · shape-ups