This might be a silly question, but I've noticed that some people in the US don't pronounce their "TH's" in some words such as (This, that, the, these, those and etc...) and some other people don't even bother pronuncing it in words such as "there" either. Is it me or people really do drop that "TH" sound in the word "there"? If so, how common is it to hear something like that?
Here are some example phrases where I've heard no TH coming from the word "there" in American English:
I'm going over der. (There)
Did you go der? (There)
Did you see that der? (There)