把舌头伸直再说话

把舌头伸直再说话:

Literally means:

one should straighten his tongue before speaking; one should speak clearly or reasonably.

Actually means:

If one does not stretch his tongue, he cannot speak clearly. This phrase is used to criticize a person who does not speak clearly or reasonably.

Sometimes it is used to advise someone not to be too excited and to speak out his words slowly and clearly.

舌头不伸直，说话不清楚。把舌头伸直再说话用于批评人家说话没有道理，或说话不利落。

它有时用来提醒说话人别激动，把话说清楚。