I won't let you through with this.
I've heard the sentence in an American TV show. The scene is in a security check point. A man carried something that was suspected to be a bomb, so the security staff said it.
But to my ear, the guy who said the sentence didn't seem to pronounce the word 'with'. It sounds much like:
I won't let you through this.
So, I'm wondering if the 'with' is droppable in spoken?
By the way, the man probably spoke the African American English, but I'm not exactly sure.
It depends on what the speaker actually wants to say.
A. I won't let you through with this.
You can break (A) down like this:
I won't let you [go] through [this metal door] with this (= the bomb/briefcase/belt).
Compare this with
I am sorry sir, but I can't let you enter the building with that gun.
The speaker could also have meant this:
B. I won't let you through this.
You can break (B) down like this:
I won't let you through this (= the metal door/check point).
"With" is often not stressed. And especially when followed by a word beginning in "th" it may be shortened.
But the w sound (at least an exhalation of breath) should not be fully dropped, and in writing we wouldn't omit the "with".
