"O.G. Original Gangster" is a term that originated in urban culture, particularly within the hip-hop and gangster rap communities. It refers to someone who has been involved in street life for a long time and is respected for their experience and authenticity. The term "O.G." signifies a person who has earned their status through their actions and contributions to their community. The phrase gained wider recognition through the 1991 album titled "O.G. Original Gangster" by Ice-T, a prominent figure in the rap genre. The album explores themes of street life, survival, and the realities of urban existence, solidifying Ice-T's status as a pioneer in the genre and influencing many artists who followed.