n.simply put, a pile of crap. a heap of shit. a mound of doo doo. you get the picture. Could also be used as an insult, if one so chose.
> "Man, look at that large, smelly, brown dung heap."
> "That's one big pile of shit." "Of course. It's a dung heap."
> "Oh, Bob. Don't be such a Dung Heap."