the highest level of friendship possible by two members of the human species.
"you're my super duper best friend!"
"omg. for life!"
by Juuliiex June 9, 2012
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A friend that is your best friend in public and always knows what you need but in private knows what you need which is usually to be pinned against the bed and taken care of until your legs shake. They are honestly the only friend you need.
Sorry babe I can’t make it tonight I have to go talk to my super duper friend about a problem I’m having.
by Misterstealyourgurl June 21, 2023
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