No no, you guys have no clue what a "chelsea smile" is. This is how it is defined. A torturing term used all around the world but originating in chelsea. The victim's hands are tied or held and the sides of there mouth are cut slightly breaking the strong lip structure. The victim is then kicked very hard in the nuts or in the case of a woman a leg is broken and as the victim screams the cuts rip creating the "chelsea smile."