hum-ble-cock / h^m bel kok/ n. 1 a quietly confident individual who does not brag or otherwise flaunt his successes 2 one who chooses to forgo arrogance in favor of modesty
A Humblecock would be an individual, both male and female, that has been successful in their walk of life but chooses not to flaunt it, brag about it or put on displays or arrogance. This could be in professional sports, business, entertainment or any other celebrity. He or she portrays it in a subtle, not obnoxious, way. The cock portion of humble is because they could be the leader in their group, sport, business or life.