fake news; bogus information; disinformation
Slang term for deliberately false or fabricated information, often used in journalism, social media, or casual conversation. Combines ガセ (fake) and ネタ (material/story).
That article was fake news.
ネットでガセネタを拡散しないでください。
Please don't spread disinformation online.
Mixed hiragana-katakana variant; less common but seen.
Compound of ガセ (fake, from slang) and ネタ (material, story, from reversal of 種). The exact origin of ガセ is uncertain, but it is widely used in casual Japanese.