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解散 kaisan
Right, we're done here. Everybody out.
What does kaisan mean?
はい解散 — the joke announcement that a plan has collapsed. One fact ruins the whole premise, so you formally dissolve the gathering, usually a gathering of two.
Example
財布忘れた。はい解散。
I forgot my wallet. Well, that's that, then.
Vibe
Who you can say this to, and how it lands.
Friends only Casual. Natural with friends, out of place at work or with strangers.
The story behind kaisan
The plain word is heavy. 解散 is what happens to a band that breaks up, a company being wound up, a parliament being dissolved before an election. It belongs to press conferences and news tickers, which is exactly what makes the small version funny.
Online, はい解散 is deployed when a single detail flattens whatever was being built. Someone announces the restaurant is closed today, someone admits they left the tickets at home, and the reply arrives with the ceremony of an official statement. It also survives in ordinary life without any joke: after dinner, 今日は解散で simply means we go our separate ways here.
Get kaisan in your pocket
解散 is one of 308 words in YABAI, a Japanese culture snack for Android. Every word comes with its meaning, an example sentence, a vibe check and a story like the one above — in 13 languages, read aloud by your device. Paid app: no ads, no sign-up, no subscription.
