“Niwaka” means “suddenly.”
People who suddenly become fans when something becomes trendy, without knowing much about it, are dubbed “niwaka fan.”
When the Rugby World Cup was held in Japan this fall, the number of niwaka rugby fans rapidly rose.
「にわか」とは、
“niwaka” toha,
niwaka
「突然に」という
“totsuzenn ni” to iu
suddenly
予備知識がないのに
yobichishiki ga nai no ni
without knowing much about it
ブームに乗って
bu-mu ni notte
when something becomes trendy
ファンになる
fann ni naru
(who) become fans
「にわかファン」と
“niwaka’fann” to
niwaka fan
この秋に
kono aki ni
this fall
ラグビーワールドカップが
ragubi- wa-rudo’kappu ga
(the) Rugby World Cup
開催され、
kaisai sare,
was held when
にわか
niwaka
(the number of) niwaka
ラグビーファンが
ragubi-’fann ga
rugby fans
急増しました。
kyuuzou shi mashita.
rapidly rose