An informal greeting used in the Western Hemisphere by mainly English speaking people. Adapted from the North Korean response to a miltary command, "dong ko taj."
Additionally, a modest edifice for male genitals.
Teddy: Dong cottage!
Patrick: Dong cottage. How are you?
Teddy: I'm alright. I'm trying to finish my novel. I'll tell you what, I've been spending more time writing than Anne Frank spent on that shitty journal.
Patrick: Yeah, it has taken you a lot longer to write that novel than it took those guys to write the screenplay for that movie about John Hurt, "The Hurt Locker."