Today the word I’ve met is spill my guts.
It’s slang and informal.

Come on, I just spilled my guts.

you’ve gotta give me something.

I heard it from Netflix Originals TV show Wu Assassins.

Spill my guts is to tell the secrets(private parts) or truth or untold stories to someone.

She is getting it off her chest now.
I don’t want to get something(this) off my chest here.
You’ve gotta get it off your chest.