A white person who behaves or seeks to appear stereotypically Japanese.(noun)
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Use "weeaboo" in a sentence
"It's incomplete because it doesn't yet include all the instances where we waste time on "weeaboo" when someone asks us "what do you think about ..." but it's a start."
"Upon googling the kids on my lawn, I see that's what all this "weeaboo" talk is referring to."
"That fan would be a brainless weeaboo teenaged moron who can't handle actual roleplaying."