A drunk person running around pretending to be an airplane. Typically the person has their arms straight out and is making airplane noises.
"We were playing Wizard staff and he suddenly turned into a Dutch Bird."
"He was so foggerhoffed he pulled off a Dutch Bird in the middle of the parking lot!"
Person 1 : "How did I get all these scraps on my face?"
Person 2 : "You crash landed your Dutch Bird on a gravel parking lot last night"