有口无心

有口无心:

Literally means:

have a mouth, have no heart

Actually means:

In a metaphorical sense, it means speaking without considering the consequences.

Also, it means that one soon forgets what he/she has said previously.

It often shows one's hope to be forgiven for the hurts he/she brings to others by his/her words, be cause he/she bears no malice in doing so.

比喻随随便便张口就说话，没有考虑到会有不好的后果。

也指说了什么话，自己并不在意，过后就忘了。

往往表示所说的话虽然伤了人，却没有恶意，希望人家能够原谅。