in dutch: a mathematical problem that is hard, if not impossible to solve. a fucked up sum- literally, a cuntsum.
'jezus wat een kutsom'--> 'jesus what a fucking difficult sum'
by Jadadada July 11, 2008
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Lil Jon's clothing, white top with a black stripe down the left side with white letters KUTSOM
by Rik November 27, 2004
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