1.The act of walking directly behind someone so when they open a door, you can slip through after them without having to hold it.
2. The act of walking directly behind someone so that when they open a door, they have no choice but to hold it open for you.
Dude, I was totally out of it this morning, so I door shadowed some chick for almost 10 minutes.

Man, I hate when people are door shadowing all over me.
by Plethora Girl September 16, 2011
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