Please explain the American slang in the movie Twilight ~! !

Yep is used in spoken language, which is slang and means "yes";

Example:

"Yes," he replied, staring into the darkness.

"He looked blankly at the dark night and answered" Yes ".

Oh, my god

This is American English, which means "Oh, my God". This is a sigh of surprise and a euphemism for God.

Example:

Barbara: Oh, my God! What did you do?

Barbara: Oh, my God! What did you do?

Oh, my God, that guy is bragging again!

Oh, my God, that guy is talking big again!

3. Dube

Used as a title, meaning "friend, brother";

4. Bomb

This is American slang, which means "doing something well".

5. Must

American slang, equivalent to have got to "must";

Example:

Gotta go. See you later.

Gotta go. I'll call you later.

I have to go.

I have to go.

6. Let's go. Oh, my God! This is perfect. Are you kidding? sorry

Are you kidding? "Are you kidding?" This sentence is often used in spoken English;

Example:

Are you kidding us?

You must be laughing at us, right?