Fast and easy profit; money made in a short period of time. 'Quick' means fast, and 'buck' is slang for a dollar bill. Also can say easy money. Note: Quick buck的意思是短期内能够比较容易挣到的钱。Quick的意思是快速的,buck是美元的一种比较通俗的叫法。也可以说easy money。
例:Are you interested in making a long-term investment or in turning a quick buck? 你对长期投资有兴趣还是短期挣钱快的?