Spill the beans, usually means tell me the gossip or be honest with me.

It means to tell someone's private or personal information, or to tell something you were supposed to keep to yourself. Examples: I wanted to know why Tom got fired, but Mary wouldn't spill the beans. Susie can never keep a secret. She always spills the beans. My husband planned a surprise party for me, but my sister spilled the beans.

Spill the beans = disclose information, sometimes confess, sometimes, accidentally disclose such as a secret. Come on spill the beans, I can see you're looking guilty about something. The party planning is going fine. He does not suspect a thing. I'm just afraid someone will spill the beans accidentally.

"Spill the beans" means to tell the information