Hyperbole
From ThePlaz.com
Hyperbole: exaggeration for emphasis or for rhetorical effect.
*My vegetable love should grow Vaster than empires, and more slow; An hundred years should got to praise Thine eyes and on thine forehead gaze; Two hundred to adore each breast, But thirty thousand to the rest. Andrew Marvell, "To His Coy Mistress"
*Da mi basia mille, deinde centum, Dein mille altera, dein secunda centum, Deinde usque altera mille, deinde centum. Catullus, to his.