Dunga. This word can be used as a put-down but also as a term of endearment. It originated from South Australia in 2002 where it grew as a popular term to describe poor dress sense, bad co-ordination, stupid thinking etc.
"What are you wearing those shoes for, you look like a dunga!"
"I stubbed my toe, I am such a dunga!"
"Haha, what were you thinking you dunga!"
A word created by Tyler Quesnel, also known as Lil Dunga, that means absolutely nothing. This word is banned in schools, for teachers think it means genitals.