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A nickname for someone with the birth name Nelli. Only awesome Nelli's can go under the term Nellz (or any variation of your name with a 'z' in it for coolness). It should be noted that non-awesome's going under Nellz might experience heart failure, as the burden is so great.

Basically the coolest person you would ever hope to meet, ever. Usually you experience an epiphany after meeting Nellz.

Also, she is a gangstuh.
Nellz, you are so cool. I can't believe you can handle that z in your name!
by Hahaha's October 12, 2009
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