make nonsense of
make (a) nonsense of (something)
To treat something serious or important in a silly or ridiculous manner; to make a mockery of something. The candidate has been making a nonsense of the whole political process, but for some reason many voters feel that that is just what's needed. I don't appreciate you making nonsense of this class with your rude remarks and obnoxious behavior.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
make nonsense of something
to make something appear to be silly or nonsensical. You are just making nonsense of everything I have tried to do. Your statement makes nonsense of everything you have said before.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
make nonsense (or a nonsense) ofreduce the value of something to a ridiculous degree.
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