When you are sitting on the toilet and someone comes up and flushes it before you are done pooping. You then can feel a moist breeze on your nuts.
Everything was coming out just fine until she sneaked up and gave me a Tropic Thunder from Down Under. I was unable to get off the toilet since I was not finished dropping my load. The cool breeze did feel nice on my balls though.
by Titanium NT December 01, 2009
7 Words related to Tropic Thunder from Down Under

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