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Pick-up \Pick"-up\, or Pickup \Pick"up`\, n. [Colloq., Cant. or Slang] 1. Act of picking up, as, in various games, the fielding or hitting of a ball just after it strikes the ground. 2. That which picks up; specif.: (Elec.) = {Brush} b. 3. One that is picked up, as a meal hastily got up for the occasion, a chance acquaintance, an informal game, etc.