Meaning of 皮算用 in Japanese

Definition of 皮算用

かわざんよう(kawazanyou) 【皮算用】

(n) over-optimistic calculation; counting one's chickens before they're hatched →Related words: 取らぬ狸の皮算用

とらぬたぬきのかわざんよう(toranutanukinokawazanyou) 【捕らぬ狸の皮算用 ·獲らぬ狸の皮算用 ·取らぬ狸の皮算用】

(exp) don't count your chickens before they're hatched; counting raccoon dog skins before they have been caught
取らぬ狸の皮算用か。
Are you counting your chickens before they are hatched?

取らぬ狸たぬきの皮算用かわざんよう。

Count one's chickens before they are hatched.

Don't count your chickens before they are hatched.