Top Definition
Anyone who believes that an insensitive, insecure, and jealous git like Ron Weasley is good enough for a smart, intelligent, loyal, woman like Hermione Granger.

The term comes from Harry Potter fanfiction, where H/R ('heron') refers to Hermione/Ron shippers.

Rowling, being a heronista, is rather delusional.
by Rand Suren December 23, 2007
7 Words related to heronista

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