like a dog with a bone

Adjective

 * 1)  Stubborn and tenacious; persistent; relentless; dogged.
 * 2) * 1932, Louis-Ferdinand Céline, Ralph Manheim, trans. 1982, Journey to the End of the Night, page 67
 * I was like a dog with a bone, I wouldn't let go.
 * 1) * 1932, Louis-Ferdinand Céline, Ralph Manheim, trans. 1982, Journey to the End of the Night, page 67
 * I was like a dog with a bone, I wouldn't let go.