To give incriminating information about others, especially to the authorities
He returned to his stool, feeling like a complete fool.
He sat on the bar stool next to her.
He parked himself at a computer, and she perched on a stool beside him.
She leaned over the stool, expecting to lose the little she had eaten for breakfast.
He stepped behind Elisabeth's stool, placed his hands on her shoulders, and kissed the top of her head.