1. That which is located below the waist that makes the owner proud.

2. Passing gas in a way that causes ripples in both the thighs and the air around it.
1. Tonight, if things go right, Sara will be taking a gander at my down-under thunder

2. Man, I have a bad case of the down-under thunders
by Jacob Krieg May 22, 2008
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Another term for a wet fart or shitting one's self.
Karen: I can't believe it, I was doing squats at the gym, now I'm brown down under.
by Hardoneous Maximus June 2, 2011
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Alex spots a sexy woman and begins to feel Quigley Down Under.
by strokermouse October 25, 2010
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A man and woman are having intimate sex and the man loses his erection while his dick is fully inserted into the womans vagina

Typically done by people who have been playing way too much call of duty
Woman- Oh yeah don't stop!
Man-... Oh God
Woman- What why did you stop
Man- TANGO DOWN UNDER!
by Doctor Broski January 11, 2010
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The act of spending a lot of money unnecessarily, on things no one else would collect, even though they haven't the means to continuously do so.
Daniel: "Hey, I just bought a Russian radioactive mask"

Richard: "You are such a Dan-down-under!"
by Grundig Rossini April 19, 2011
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