The Collaborative International Dictionary
Whistlingly
Whistlingly \Whis"tling*ly\, adv. In a whistling manner; shrilly.
Wiktionary
whistlingly
adv. With a whistle sound.
Usage examples of "whistlingly".
He took out the ivory cigarette holder which had been pushing up through the buttoned flap of the pocket on his khaki shirt, put it in his mouth and blew whistlingly through it.