chelsea grin? as in when you have the side of your mouths slit or the american hardcore death metal band?
chelsea smile is what they called it after the krays movie with the kemp twins anyway the closest i have come to it is whilst having a cod sore at the corner of my mouth which split and bled everytime i laughed/yawned
Chelsea Smile? Aint Chelsea full of posh cocks anyway? Or is it based on the football fans of the team? Had a few run ins with them
its called a glasgow smile or a chelsea grin, nowadays it is more commonly known as latter, especially if you're english and even more so if you live next to chelsea