Why is there no article in front of "door"?
Native speaker’s answer
Rebecca
The only reason why he skips over the article "the" here in front of "door" is because he is talking very fast and speaking in a lazy manner. "The" is already implied, so he skips this article to reduce the amount of words he needs to use since he is speaking very fast. It is common in English to skip over words like articles in a sentence when you are having a very casual or informal conversation.