Ohhah! – The Cheerful Morning Catchphrase That Took Japan by Storm

Ohhah-image

Overview

Summary“Ohhah!” is a lighthearted and energetic morning greeting popularized by Japanese comedian and TV personality Shingo Katori, a member of the idol group SMAP. The phrase became a cultural phenomenon in the late 1990s when Katori used it on the children’s morning show Sata Suma. Delivered with a playful tone and an exaggerated expression, “Ohhah!” became an instant hit among kids and families across Japan.
Japanese Writingおっはー!
GenreGreeting / Variety Show Catchphrase / Pop Culture
Typical Age GroupChildren to young adults (6–40), though nostalgic for adults
AudienceFans of 1990s Japanese pop culture, variety shows, SMAP fans, and anyone interested in cheerful or nostalgic expressions.
Popularity★★★★☆
Relevance★★★☆☆
Though its peak popularity was in the late ’90s and early 2000s, “Ohhah!” still holds nostalgic value. It occasionally resurfaces in retro-themed programs or social media posts celebrating ‘90s Japanese entertainment. The phrase also set a trend for using silly, catchy greetings in Japanese pop culture.
Usability★★★★★
When to UseUse it to greet someone in a cheerful, over-the-top way — especially in the morning or in a fun, casual setting. It’s perfect for adding a dose of humor or cuteness to your hello.
How to UseHold both fists near your face, open your eyes wide with a goofy smile, and shout:
“Ohhah!”
Cultural NoteThe word “Ohhah!” is a playful twist on Ohayou (おはよう – “Good morning” in Japanese). In 2000, it was so popular that it won the Ryukougo Taisho (Buzzword of the Year) award in Japan. It became a symbol of morning energy, youth culture, and comedic charm — and is still remembered fondly today.

Original performance

You can hear a similar phrase at about 00:01 in this YouTube video.

“Ohhah!” is also frequently used on the children’s TV show Oha Suta.
Originally, it was a phrase used within Oha Suta, but it was Shingo Mama — a character played by Shingo Katori — who made it widely popular.

This version of “Ohhah!” is from Koichi Yamadera, the original host of Oha Suta.