noun. A chain of events leading to the ruin of one's state of contentment.
"Dude, that cop tailing us is making me nervous."
"Yeah, he's being a total harsh-mellow."
by s0meguynamedjim March 31, 2010
Get the harsh-mellow mug.
Bringing down my good mood.
I didn't like her.. she was really harshing my mellow, man.
by Julia May 7, 2005
Get the harshing my mellow mug.
to be a killjoy. to ruin someone's happiness, whether they are drunk, or just really happy, with sad news or drama.
mellow, in a good mood, then someone tells you something saddening. u harshed the mellow.

"dude. your house is on fire."
"damn. you totally harsh my mellow."
by kiley hamre November 7, 2007
Get the harsh my mellow mug.
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."
by PsychoDice January 14, 2004
Get the harshed my mellow mug.
1. To annoy someone and bring them down whilst they're in a good mood
2. To annoy someone and bring them down whilst they're high
1: "This guy's annoying the fuck outta me, he's totally harsh my mellow!"
2: "Like duuude, this guy just came along and was screaming at me and dude, whoa dude HE TOTALLY HARSH MY MELLOW man!"
by LordEuronymous May 27, 2012
Get the harsh my mellow mug.