嘘松

• 読み: うそまつ
• ローマ字: usomatsu
• 漢字の分解: 嘘 (lie/falsehood) + 松 (pine tree — borrowed from the character naming convention in おそ松さん anime)
• 発音: /ɯ.so.ma.tsɯ/

意味

Obvious liar — calling out a story as fabricated or too good to be true, essentially saying 'that's fake.'

Born on Twitter around 2016-2017, 嘘松 became the go-to response for calling out obviously exaggerated or fabricated stories on social media. The term borrows the -松 naming convention from the anime おそ松さん, which was hugely popular at the time. A typical 嘘松 post follows a formula: an implausible story about something amazing that 'totally happened' to the poster, often involving strangers clapping or spontaneous applause. The term has become so established that 嘘松認定 (being labelled as fake) is a feared outcome for posters.

例文

1. その話、嘘松でしょ。盛りすぎだって。
2. Twitterで嘘松バズってるの見ると萎える。
3. 嘘松認定されたくないから証拠のスクショ貼った。

使い方ガイド

場面: social media, internet forums

トーン: dismissive, skeptical

正しい言い方

• また嘘松が流れてきたわ。 (Another fake story showed up on my feed.)
• 嘘松っぽいけど、もし本当だったら面白いね。 (It looks fake, but if it's real that's funny.)

避ける言い方

• 本当の体験談に「嘘松」は傷つく (Calling a genuine personal story 'fake' is hurtful)

よくある間違い

• Using 嘘松 outside of internet/social media contexts — it's specifically an online callout and sounds unnatural in face-to-face conversation
• Not knowing the おそ松さん anime connection — the -松 suffix is a cultural reference, not random

起源と歴史

From 嘘 (lie) + 松 (from the -松 naming convention in おそ松さん anime). Emerged on Twitter around 2016-2017 when fans of the anime started using the -松 suffix creatively, and 嘘松 stuck as internet slang for fake stories.

文化的背景

時代: 2016-2017 Twitter culture

世代: Gen Z and younger millennials

社会的背景: Internet subculture

地域メモ: Used nationwide online. Peaked in popularity around 2017-2018 but remains understood and used.