harsh (one's) mellow(redirected from harshing someone's mellow)
harsh (one's) mellow
slang To annoy one or otherwise ruin one's good mood. Ugh, don't harsh my mellow with that stupid talk. Leave me alone. I was so excited to see the concert, but all the technical problems with the lights and sound really harshed my mellow.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.