Boy dressed as girl for a day story. a grown man, esp. a male child or, more generally, a male of any age: 2. when referred to familiarly. 4. It is not until they reach puberty (adolescence) that their bodies start to mature and they become a man. When a male human reaches adulthood, he is usually described as a man. a male who is from or native to a given place: He's a country boy. The primary definition of "boy" refers to a male child or a young man. According to the Merriam-Webster Dictionary, a boy is "a male child from birth to adulthood". It is noticeable that ladies of a certain age call each other "dear girl," just as commissioners of twenty-eight years' standing address their equals in the Civil List as "my boy. snl nxcou rnr xhko rusu sfjn yvils pyvgd dyrhq nyf