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A man, woman, or animal characterized by their extreme love of junk (i.e. balls, scrot, or cock), being lodged particulary within their individual anus.
"What do you want to do tonight?"

"Put it in my ass"

"How about a movie?"

"Put it in my ass"

"Man you're a real junk donkey"

"Yea. Put it in."
by the merf January 27, 2007
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