Definition & Meaning of "hoodlum"in English

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

"hoodlum" is an American slang term that appeared in the late 19th century, particularly in San Francisco, to describe young street criminals or gang members. Its exact origin is uncertain, though it may derive from German or Irish immigrant slang. The word conveys lawlessness, violence, or antisocial behavior and was widely used in newspapers, police reports, and literature to describe troublemakers. It is clearly derogatory, used to condemn criminal or disorderly behavior, and is not neutral; it often carries a sense of social threat or danger.