開口笑
kāi​kǒu​xiào

to smile broadly

开口笑 開口笑 kāi​kǒu​xiào
to smile broadly
To open one's mouth and laugh or smile; used to describe a happy or optimistic mood.
to split open
To split or crack open in a way that resembles a wide smile, such as a worn-out shoe where the sole has detached from the upper.
kaikouxiao
A type of fried pastry made from flour, butter, and eggs that splits open during cooking, resembling a laughing mouth.