این خط این نشون!

Question

این خط و اینم نشون : عبارتی تهدیدگونه برای منع کسی از چیزی یا انجام کاری، نگویی که نگفتم.

Answer 1

Mark my words

Something that you say when you tell someone about something that you are certain will happen in the future: That girl's going to cause trouble, you mark my words.

http://idioms.thefreedictionary.com/mark+my+words

 

Also: I told you so!

Said when something bad happens after you warned someone that it would happen.

http://dictionary.cambridge.org/us/dictionary/british/i-told-you-so

Answer 2

These phrases can also convey the same meaning:

You can bet your bottom dollar.

Don't say I did not tell you.

Answer 3

Cross my words ...