"You Dun Know Already" is a song by Ghetts, a British rapper and grime artist. The track is known for its energetic and aggressive delivery, typical of Ghetts' style. The lyrics mainly revolve around Ghetts asserting his dominance and confidence in his abilities as a rapper and his presence within the music scene. The opening lines mention a conversation with someone named Wez about the price of a "brick," likely referring to a drug deal. Ghetts responds with enthusiasm and confidence, showing that he is well-versed in this world. He then mentions his ability to make a drink and his friend Mercs requesting a picture, both reinforcing his reputation and influence. The chorus repeats the phrase "You dun know already," which means "You already know" or "You should already be aware." This phrase serves as a confident assertion of Ghetts' reputation and status. The second verse continues with Ghetts asserting his dominance over other MCs (emcees), challenging anyone who dares to go against him. He also mentions the reemergence of Megaman, a prominent member of the once-popular UK garage group, So Solid Crew. Ghetts associates himself with Megaman's return and highlights his own skill and ability to deal with any threats. The song's overall theme revolves around Ghetts proclaiming his supremacy in the rap and grime scene. He displays his confidence, skill, and willingness to confront anyone who doubts his abilities. The lyrics also touch on street and urban culture, expressing Ghetts' knowledge and involvement in this environment. It's important to note that some lyrics contain explicit language and references to violence, which are common elements in the grime genre.