"샤카" (Shaka) is a term that can refer to a hand gesture commonly associated with Hawaiian culture, often used to convey a friendly greeting or a sense of relaxation. The gesture involves extending the thumb and pinky finger while keeping the other fingers curled. It symbolizes a laid-back attitude and is frequently seen in surf culture. In a different context, "샤카" can also refer to Shaka Zulu, a prominent leader of the Zulu Kingdom in the early 19th century. He is known for his military innovations and unification of various tribes, which significantly shaped the history of southern Africa.