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the girl is in a slanted sitting position when you blow your diarrhea shit on her back and it streams down her back like lava on a mountian.
Lucy was being a bitch so i gave her a lava donkey!
by donkeymasterbill April 29, 2010
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(n) big booty girl who enjoys bukkake
Tracy had a 10 person bukkake orgy. She’s a true Lava Donkey
by LCFIT February 07, 2019
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