What does sweet potato mean at school?

Nickname. Sweet potato, also known as "bean potato", is a tropical twining plant with turnip-like tuber, which is used as an edible pod for raw lettuce or cooked lettuce. The sweet potato in school is a nickname given by others, laughing at his thick and weak appearance like sweet potato. Sweet potato is sweet potato, small sweet potato, which is a bit demeaning, saying that others are small and delicate.