Olajide 'JJ' Olatunji, known globally as KSI, has been a central figure in internet meme culture for over a decade. Starting from his high-energy FIFA videos to his evolution as a boxer, musician, and Sidemen member, his highly expressive face has provided endless material for creators. Common themes include jokes about his forehead size, his 'bulking' phases between boxing matches, and his infectious, high-pitched laughter. KSI memes are frequently used to express extreme shock, ego-driven confidence, or comedic failure, often being reviewed by JJ himself on his popular 'Try Not To Laugh' Reddit videos, creating a unique feedback loop between the creator and the meme community.