1 definition by TheSweetPrince

Top Definition
a genre of Harry Potter fanfiction were Severus Snape mentors, aprentaces or in anyway becomes a father like figure to Harry Potter.

also applies to Harry taking care of Severus

Severitus is NOT Snarry paring.
"I was reading this Severitus fic, and Snape never really hated Harry anymore, he was kinda fatherly really."
by TheSweetPrince August 24, 2007
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