"Oi! Punk" is a subgenre of punk rock music that emerged in the late 1970s in the United Kingdom. It is characterized by its raw sound, aggressive lyrics, and a focus on working-class themes. The genre often incorporates elements of street culture and is associated with the Oi! movement, which emphasizes unity and pride among the working class. The term "Oi!" itself is a colloquial expression used to grab attention, and it reflects the genre's direct and confrontational style. Bands like Cock Sparrer and Sham 69 are notable examples of Oi! Punk, often addressing social issues, political discontent, and everyday struggles in their songs.