Top definition
A mcnellis is a really special girl. She will never let you down. She is so funny and you wont stop smiling around her.she will be your best friend who is always there to support you. You will love her. She will love you too
guy :who is that?
guy :her? oh she is such a mcnellis. you'll be great friends
by JimTheOwl1 January 05, 2014
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