Top Definition
The act of one being pompous, bitchy, harsh, or unreasonable while the target individual is in a good mood and mellowed out (in most cases the usage of herb is involved).
"Bro stop harshin on my mellow"

"Oh my god mom stop harshin on my mellow"

"That bitch totally just harshed on his mellow"

"Wow they really harshed on his mellow"
by PRIM0 February 22, 2012

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