Plump/plʌmp/ Definition 1 of 4Pro Tip 1/3Positive Connotation Plump often suggests something is pleasantly full and healthy, not just overweight. She admired her plump baby's healthy growth. Pro Tip 2/3Describing Objects 'Plump' isn't only for living things. It can describe anything round and full. He settled into the plump pillows. Pro Tip 3/3Figurative Use Used figuratively, 'plump' can mean well off or sufficient. They found themselves in a plump financial position.