Make a mockery of something
Definition 1 of 1
Pro Tip 1/3Negative Tone
Expresses disapproval or criticism of something considered wrong or inappropriate. 
By ignoring the rules, you make a mockery of the whole competition.
Pro Tip 2/3Subtle Insult
Used to imply that something is so bad that it’s almost like a deliberate insult. 
This poorly constructed argument makes a mockery of academic research.
Pro Tip 3/3Emotional Weight
Can carry a sense of betrayal or anger, especially when one's efforts are devalued. 
That plagiarized essay makes a mockery of your genuine passion for literature.