Wiktionary
vb. (context idiomatic English) To dwindle; to tail off; to diminish to nothing.
WordNet
Usage examples of "peter out".
Max allowed himself a smile, he knew that Johnson had had no such plans for Emily when he had cooked up the plan to flush Peter out from his convenient grave.
Anthony took quick shots from the boat and the dock, then rode a motorboat with Peter out to the third barge, which carried Sammy and the avisaurs.
She had to get Peter out and free as many of t he others as she could.
How much time did she have to get Peter out if the payoff had been made?
I had thought in the hospital three days earlier that Chuck had a superb vocabulary of invective, but he had evidently kept a supply in reserve, which he now employed as he helped Peter out of the car with the babies.
She had to get Peter out and free as many of the others as she could.
They listened politely to what the Strode brothers had to say and then sought Peter out, TV cameras rolled, the pencils flew, and women reporters got hold of Ida, intrigued by the fact that one of their own sex had become involved in a boardroom squabble.