(archaic, possibly obsolete) to make something into a saying or set expression / (rare) to kiss

crater, literally "fire mountain mouth".

(historical) Hankou (a former city in Hubei, China, now part of Wuhan)

(historical) Hankou (a former city in Hubei, China, now part of Wuhan)

easy come, easy go

(idiomatic) Speak no ill-fated words; let no feeding cause you ailment; literally Diseases enter through the mouth, disasters come out of the mouth.

Zhangjiakou (a prefecture-level city in Hebei, China)

good advice may be uncomfortable to hear

dead men tell no tales / It is easy to pass the buck to the dead because they can not defend themselves.

an orbicularis oris muscle