“Bijuu Iijan!” – The Japanese Gen Z Phrase That’s Taking Over TikTok

Biju Iijan Buzzwords in Japan

In the ever-evolving world of Gen Z slang, Japan has given us a new gem: “Bijuu Iijan!” (ビジュいいじゃん) — a phrase that roughly translates to “That visual is awesome!” or “You look great!”

From Japanese TikTok (known locally as “Tee-ku-toku”) to teen conversations in Harajuku, this compliment has become one of the most popular ways for Gen Z in Japan to hype up their friends — and it’s catching the attention of trendwatchers worldwide.

What Does “Bijuu Iijan” Mean?

“Bijuu” is short for “visual” (ビジュアル), a word that refers to someone’s appearance, style, or aesthetic.
“Iijan” (いいじゃん) means “That’s good!” or “Isn’t that great?”

Put them together, and you get:
👉 “Bijuu Iijan!” = “You look great!” or “Your look is on point!”

It’s a quick, fun way to praise someone’s style, especially when they’re dressed to impress or post a stunning selfie.

Where Did It Come From?

The phrase exploded in popularity thanks to the Japanese dance-vocal group M!LK and their song “Ii Jan (イイじゃん),” which features the catchy phrase in its lyrics. When Japanese teens started lip-syncing to it on TikTok, it quickly turned into a viral expression.

By June 2025, a nationwide survey of Japanese high schoolers ranked “Bijuu Iijan” as the #1 trending phrase of the summer, beating out other slang and pop culture references【source: Shibuya Trend Research】.

How It’s Used on Social Media

“Bijuu Iijan” isn’t just a one-time meme — it’s become part of everyday youth language. On TikTok and Instagram, teens drop it in captions, video comments, and reaction videos. You’ll also hear it shouted among friends in real life — especially when someone shows off a cool outfit, makeup, or a new haircut.

Think of it as the Japanese version of:

  • “Slay!”
  • “You’re serving!”
  • “Fit check: 10/10!”

Why It Matters

Language trends like “Bijuu Iijan” are a window into how Gen Z in Japan expresses admiration, self-confidence, and style. They also showcase how J-pop and TikTok culture continue to shape global youth expression — even if the language is different.

For American readers curious about Japanese slang, this is one to remember. You might even try commenting “Bijuu Iijan!” on a stylish TikTok or Insta post — who knows, it might catch on across borders!

Final Thoughts

If you’re into J-fashion, TikTok trends, or Gen Z language shifts, “Bijuu Iijan” is more than a trend — it’s a vibe. Stylish, positive, and straight from Tokyo’s youth culture, it’s a phrase worth knowing (and using).


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