noun
Refers to traditional Japanese festivals, often with processions, food stalls, and community celebration. Also used for any festive event.
See also: お祭り
夏になると、町のあちこちで祭りが開かれる。
In summer, festivals are held all over town.
今夜は近所の神社でお祭りがある。
There's a festival at the local shrine tonight.
noun
online shaming; Internet mob harassment; flaming
Colloquial Internet slang: a situation where a person is targeted by a large group of online users for criticism or harassment, likened to a festival mob.
彼の失言がきっかけで、ネット上で大祭りになった。
His gaffe triggered a huge online shaming frenzy.
noun, used as a suffix
Colloquial suffix use, attaching to nouns to mean 'a flood of' or 'a frenzy of' something, often in a positive or excited context.
今日はゴール祭りで、サッカーの試合がすごく盛り上がった。
It was a goal fest today; the soccer match was really exciting.