Top definition
Australian origin.
1. v. an act that is beyond reproach. To do something not cool.

2. A putdown, an insult. To act in a less than perfect manner.

3. To lose favour in someone's eyes - to do something that makes an admirer lose interest.
1. Did you see what she did? That was so unmelly!
2. That haircut is so unmelly.
3. I use to think Kate was hot, but then the way she talked about everyone was just so unmelly.
by Swa September 26, 2007
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