An upstart or newcomer; nouveau riche; parvenu; an ambitious, brash or arrogant person who has yet to integrate with his or her new social group.
One who has suddenly gained wealth, power, or other prominence, but either has not received social acceptance or has become arrogant or presumptuous.
The meadow saffron.
Acting like a parvenu.
self-important and presumptuous.
to rise suddenly, to spring