When you hook up with an Australian chick in Las Vegas and she has a seizure orgasam that causes her to poo herself resulting in a skid mark the length of her back.
After the Australian mudslide I threw away the hotel sheets.
by Lorddigles February 28, 2017
When someone has explosive poops and another person licks up and down their buttcrack after, spreading the poop around. This vulgar process is native to Australia.
Johnny gav me a wicked Australian mudslide with his extremely long tounge.
by graidyschaefer February 06, 2010