1 definition by Justin Young and Josh Young
To be relaxed, straight kickin, to be or become chill. Something that is cool, sick dirty, nasty, or flithy.
1. That party was mellow last night.
2."Mackay how you feel today?"
" I feel pretty mellow guy."
3." I'm not gonna lie, that's a pretty mellow car."
2."Mackay how you feel today?"
" I feel pretty mellow guy."
3." I'm not gonna lie, that's a pretty mellow car."
by Justin Young and Josh Young August 21, 2008