Indeed, the word tuxedo is not supposed to escape from a true gentleman's lips.

A whimper escaped from his lips, glad to be free.

As the plane started its final descent, one word escaped from Lieberman's lips.

He took a breath, then let it escape slowly from his pursed lips.

A long sigh of pure delight escaped from her lips.

Such were the first words, the only ones which escaped from Benito's lips.

Once more a long, low whistle escaped from the philosopher's lips.

And during all that, not a sound escaped from his lips.

A low moan escaped from her lips; then she swayed toward him.

I tried to tell her, but only low gasps escaped from my lips.