weeaboo

noun2

1. •
   (slang, offensive) A non-Japanese person, stereotypically an unsociable white male, who is overly infatuated with Japanese culture; a loser Japanophile.

   • Ingrid has been with Stephen, a Japanese translator and blatant weeaboo, for five years, and yet is shocked when she finds evidence that all of his ex-girlfriends are Asian. — 2022
2. •
   (slang) A person who is obsessively interested in anime, manga or Japanese culture more generally.