1Physical money in the form of banknotes and coins — money on hand that can be used right away, as opposed to funds in a bank account.
このお店はカードが使えないので現金しか受け付けない。
This shop doesn't take cards, so it only accepts cash.
ATMで現金を引き出してから旅行に出た。
I withdrew cash from the ATM before setting off on the trip.
給料は現金で手渡しされる会社もまだある。
There are still some companies that hand out salaries in cash.
大金を現金のまま持ち歩くのは危険だ。
Carrying a large sum of cash around is dangerous.
2Describing someone whose attitude shifts depending on personal gain — putting self-interest first.
彼は現金な性格で、得にならないことには手を出さない。
He's the calculating type — he won't lift a finger for anything that doesn't benefit him.
頼み事をするときだけ優しくなるなんて、現金な態度だ。
Only being nice when you want a favor is such a self-interested attitude.