noun
secret savings; nest egg
Money saved secretly, often from a spouse or family. This term is rare; the shorter form へそくり is more common.
See also: へそくり
彼女は夫に内緒でへそくり金をためている。
She is secretly saving money without telling her husband.
Common mixed kana-kanji spelling.
Rare kanji spelling; this term is rare.
More common and casual term for secret savings; へそくり金 is a rarer, more explicit variant.
Compound of へそくり (secret savings) and 金 (money). The origin of へそくり is uncertain, but it may be related to 臍 (navel) and 繰る (to wind), possibly from the idea of winding money around one's waist.