alto papavero

Etymology
lit. 'high poppy.' From the Roman legend in which Tarquin the Proud, showing his son how to seize the city of Gabii, cut down the tallest stalks of poppy in a field to illustrate the act of eliminating the most powerful individuals first.

Noun

 * 1)  one of the most important, powerful or authoritative members of a group or society; heavyweight, big fish, top dog, big shot