jak rak świśnie a ryba piśnie

IPA(Pronunciation)

Proverb

idiomatic

（慣用句）地獄の寒い日、豚が空を飛ぶ日（決して起こらない出来事が起こる時）

English Meaning

(idiomatic) cold day in Hell, when pigs fly (time of occurrence of an event that will never happen)

給料の引き上げが提案されたが、取締役は会社の利益が増加する、つまり豚が飛ぶ時にしかそれを検討しないと述べた。

They offered pay raises, but the director stated that he would only consider it when pigs fly—that is, when the company’s profit increases.