It’s a polish way of saying shit or poopy
Holy shit dude, yesterday after dinner I had a large kupka and then the toilet didn’t flush

Holy shit dude that’s insane!
by Pepperonilicker December 21, 2020
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kupka is a cute polish word for poop
Kupka jest urocza. The poop is cute.
by pankomar January 20, 2018
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