Originally, a word of gibberish from the youtube video "Drinking out of cups"

It can be used to describe the way you are feeling in a variety of situations, inlcuding frustration and anger, sadness, happiness...etc. Just use it.
I got barn'd.

She totally barn'd him

or if you've been cut off while driving..."BARN'D!!"
by themanwithfournipples June 9, 2009
Get the Barn'd mug.