EXAMPLES FROM THE WEB FOR TURN TURTLE
Her tail rose, and she started, with dreadful deliberateness, to turn turtle.
His boat would "turn turtle" or be cut in two by the craft behind.
If he deviated a hair's breadth at that speed he'd turn turtle.
I dont want her to turn turtle, or anything like that, when were all aboard.
Jim felt she was about to turn turtle and promptly threw himself on to the edge of the car, endeavouring to weigh her down.
It may not be so fast as an automobile race or so likely to turn turtle or break its steering-knuckle, but it's safe.
Herein lay real danger, for if the deck-load of ashes grew too heavy the Bear might turn turtle.
In this nasty sea we were afraid she might turn turtle, as another steamer had done some months ago.
If they went down in that the touring car would most likely turn turtle, and they might all be killed.
Then I got alarmed, thinking the machine might turn turtle on me, so I shut off the engine, intending to glide to earth.
reptile, c.1600, "marine tortoise," from French tortue "turtle, tortoise," of unknown origin. The English word is perhaps a sailors' mauling of the French one, influenced by the similar sounding turtle (n.2). Later extended to land tortoises; sea-turtle is attested from 1610s. Turtleneck "close-fitting collar" is recorded from 1895.