舌头短

舌头短

Literally means:

short tongue

Actually means:

cannot speak eech clearly; speechless

It means one does not speak clearly because of having a twist in his tongue.

Figuratively it means what one does or says is unreasonable, which makes him not know what to say. It may also mean one drinks too much alcohol to talk clearly .

因口齿不清而使话说不清楚。

比喻自己没有道理而没有话说，也指酒喝多了，话说不清楚。