a party in a girls vagina, usually a mom. Needs to be kenny's mom cause she is the only one big enough. you usually bring furniture and climb up in her vagina. Also, bring food. Go there every night at 6pm. Actually a.m. cause she is sleeping so nothing will tip over.
Are you going to the party down under?

hells yeah

Bring chips

OK
by The bomb shizznit May 10, 2005
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Professional exotic dancers/strippers from Australia! They are So Hot!
I'd Love to see the performance of the Fantastic Thunder From Down Under!
by Starchylde June 2, 2016
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A country that is also known as Australia to many which was once a penal colony of the British but until today still act like a penal colony as the majority of people there are either convicts or racists.

Penal Colony Down Under should be the new name to refer to this country until they are ready to get their shit together to show kindness to people of different beliefs, races and skin colour.
1. The covid-19 has brought the worst behavior of the people in the Penal Colony Down Under. Asian looking people are targeted for hate crime on a daily basis.

2. The terrorist who murdered everyone in the mosque in Christchurch is from the Penal Colony Down Under. Many people have refused to name him, such should also be applied to his country that now has become the centre of racism in the world.
by ProHumanRace April 23, 2020
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The act of violently vomiting to the point that it causes one to evacuate their bowels at the same time from all of the straining.
To add insult to injury, as I retched into the toilet, a felt a release in my bowels and knew it was the chunder from down under.
by OrangeDeath November 6, 2010
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Thunder in the land down under* is a colloquial term to describe hot, passionate, energetic sex. If you've ever wanted a new term to 'spice up' your sex life, thunder in the land down under is the perfect way to describe it.

It conveys meanings of the best sexual experience one has ever had - something wild and crazy that leaves you breathless and panting, but wanting more.

*not geographically limited to sex in Australia, can be used anywhere in the world.
"Hey girl, want to come over for some thunder in the land down under?"
by BenjaminRogersX February 9, 2019
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