Slavic Thunder is a very hard cough or sneeze - originally caused by tuberculosis, however it can be used to represent a very bad cough.
"Of course I couldn't come into work last week - all you could hear in my house is Slavic Thunder!"
by Linden2K April 12, 2018
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The gas you get after eating slavic food your stomach couldn't quite handle.
Yesterday, at Dimitri's house, everyone could hear Thomas' slavic thunder.
by whoever0225 February 28, 2017
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