What is Harshed My Mellow?
1.
when you're peacefully blazed and something happens to ruin your high..
"Dude got baked and was screaming and shit. He completely harshed my mellow man."
2.
When your positive and well-being is put down or disturbed.
"Your fired"said Bill.
"Wow, that harshed my mellow."said Tom.
See