tough cookie

Noun

 * 1)  A person who can endure physical or mental hardship; a hardened, strong-willed person.
 * 2)  A hardy, resilient animal or plant.
 * 3)  Something troublesome or difficult to handle.
 * 1)  A hardy, resilient animal or plant.
 * 2)  Something troublesome or difficult to handle.
 * 1)  Something troublesome or difficult to handle.
 * 1)  Something troublesome or difficult to handle.
 * 1)  Something troublesome or difficult to handle.

Translations

 * Finnish: kova luu
 * German:, harter Knochen, zäher Bursche
 * Italian: osso duro
 * Polish:
 * Portuguese: osso duro