What Is Oshikatsu?
5.0BRAINROT SCOREOshikatsu The active, ongoing practice of supporting one's favorite idol, VTuber, or character (one's oshi) — buying merchandise, attending events, streaming content, voting — treated as a dedicated hobby/lifestyle in its own right rather than passive fandom.
Origin:Compound of oshi (推し, one's favorite/most-supported member) and katsu (活, short for katsudou, "activity"), following the same -katsu naming pattern as other Japanese lifestyle-activity terms (e.g. konkatsu, "marriage hunting"), formalizing active idol/VTuber support into a named category of dedicated fan behavior.
First Seen:2010
Peak Era:2026 (Fan Support Culture Canon)
Aura Impact:+1 Aura (Oshikatsu that's genuinely joyful and sustainable) / -1 Aura (Oshikatsu spending beyond what someone can actually afford)
EXAMPLE USAGE
"She spent the whole weekend on oshikatsu — merch haul, fan meeting, and a livestream marathon."
Want the full breakdown — categories, trend velocity, platform distribution, and community voting on Oshikatsu? Visit the full dictionary entry for Oshikatsu.