A fork of Rural Dictionary
It's a reference to Dana Scully in the tv show The X Files. It's when someone tries to use every exuse before the truth, to get out of something, or stick up for somebody or something.
If you get caught cheating on your bf/gf and you try to make up every possible excuse you can think of, your bf/gf might reply: "Don't Scully me."
Something is burning (cooking) in the kitchen !
You're not cooking ...
Ya-Du!
PorkChopSandwiches!
Getout .. get the f?%& out!