We have no meanings for "soundless whistle" in our records yet.
1 John Turnham's soundless whistle of astonishment recurred to him, and flicked him.
2 The commander of G2 pursed his lips in a soundless whistle .
3 India's pretty piquant face set to a red-lipped soundless whistle .
4 He looked at me for a moment, then let out air in a soundless whistle .
5 Elliott's new lips parted in a soundless whistle .
6 His lips pursed in a soundless whistle .
7 Sal's lips rounded in a soundless whistle .
8 Parry made a soundless whistle .
9 I'll be in the kitchen, I said softly, and walked quietly down the stairs, letting out a long soundless whistle .
10 My father and the pastor pitched it in by turns, while Dick went on with his surgery, his mouth pursed up for a soundless whistle .
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