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1. harshing my mellow
Bringing down my good mood.
I didn't like her.. she was really harshing my mellow, man.
by Julia May 7, 2005 add a video
2. Harshing my mellow
When someone takes away from your high, or tries to be cool by fucking with you when you are buzzed. What happens when a nancy (see Nancy) brings down your elated feelings while high.
Dude, you're really harshin' my mellow.
by Duke Mar 13, 2005 add a video
3. harshing my mellow
A stupid idiom that Mackenzie wants to believe is real, when it really isn't.

This isn't a real phrase and has been completely made up.
Mackenzie:
What does "harshing my mellow" mean?

Anyone who isn't an ignoramus:

It doesn't mean anything, because you just made that phrase up and it doesn't exist.
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