miser; cheapskate; penny-pincher
A strongly negative term for someone obsessed with hoarding money, often at the expense of others or their own well-being. Similar in tone to 'miser' or 'skinflint'.
He hoards money like a miser.
That cheapskate won't give anyone even a single yen.
Compound of 守 (protect), 銭 (coin/money), and 奴 (fellow/person), literally 'money-guarding fellow'. The exact historical origin is uncertain, but it likely arose as a vivid pejorative for a person enslaved by the desire to keep money.