The 'Eul-Young's Strike' (known as 'Eul-yong-ta' in Korea) originates from a 2003 East Asian Cup match between South Korea and China. After being repeatedly fouled by Chinese player Li Yi, South Korean midfielder Lee Eul-yong turned around and delivered a swift slap to the back of Li's head. The image of the strike followed by Li Yi clutching his head became an instant internet sensation, symbolizing a satisfying and justified retaliation against annoyance or cheating. In meme culture, it is widely used to represent a person finally losing their patience and delivering a 'reality check' or a decisive blow to a deserving target, making it a staple for sports fans and internet trolls alike.