a little bird told me - I got the dirt from someone who knows everything, but I won'

I got the dirt from someone who knows everything, but I won't spill the beans or I'll be in deep s***.

I got the dirt from someone who knows everything and said you're planning to take over the world.

I got the dirt from someone who knows everything and said you're eating my sandwich.

I got the dirt from someone who knows everything and said you're gonna fail the test.