笑扯疼了嘴角
[xiào chĕ téng le zuĭ jiăo]
'Xiao Che Teng Le Jiao Zhui' means someone has been laughing so hard it hurts the corners of their mouth - expressing intense happiness to a point where even the physical sensation echoes this joy. In other words, it conveys an overwhelming amount of laughter, almost exaggerated to a degree that humor causes some slight pain at the lips due to continuous laughter.