LIGHTWEIGHT

Definition

1. adjective weighing relatively little compared with another item or object of similar use.
2. adjective having no importance or influence.
3. noun a professional boxer who weighs between 131 and 135 pounds.
4. noun someone who is unimportant but cheeky and presumptuous. — synonyms: whippersnapper, jackanapes
5. noun an amateur boxer who weighs no more than 132 pounds.
6. noun a wrestler who weighs 139-154 pounds.