get the lowdown (on someone or something)

To receive or find out specific or comprehensive details about someone, something, or some situation. See if you can get the lowdown on what the boss is planning to do about the company's falling profits. My sister wants to get the lowdown on Geoffrey before she goes on a date with him. There's been a shakeup in the company's upper management, but we won't know how we're affected until we get the lowdown from the boss.