pin money

1. N-UNCOUNT Pin money is small amounts of extra money that someone earns or gets in order to buy things that they want but that they do not really need. 零花錢(qián)[非正式]

She built it into a little business to earn pin money. 她從這發(fā)展出一個(gè)小生意，以賺取零花錢(qián)。