大おお流行はやり

noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'

big craze; boom; huge popularity

Refers to something becoming explosively popular, such as a product, fashion, or trend. Often used with する to mean 'become a big hit'.

• このゲームは今いま、大おお流行はやりしている。

  This game is a huge craze right now.

• 大おお流行はやりのスイーツを買かいに行いった。

  I went to buy the hugely popular sweets.

noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'

widespread contagion; large outbreak

Used for infectious diseases spreading widely. Less common than the trend sense; often replaced by 大流行 (だいりゅうこう) in formal contexts.

• インフルエンザが大おお流行はやりして、学がっ校こうが休きゅう校こうになった。

  Influenza spread widely and schools were closed.