Definition & Meaning of "horndog"in English

What is the origin of the term "horndog" and how is it used?

"horndog" is an American slang term that emerged in the mid-20th century, combining "horn," associated with sexual arousal, and "dog," symbolizing instinctive or uncontrolled behavior, to describe a person—usually a man—who is excessively lustful or obsessed with sex. The term draws on animalistic imagery to emphasize uncontrollable sexual desire. It has been used in informal speech, comedy, and pop culture to mock or tease someone's sexual behavior. The term is mildly to moderately derogatory, humorous in many contexts, and not neutral.