- upstart
n. 
暴發戶
1. an arrogant or presumptuous person
2. a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class
同義詞：parvenu, nouveau-riche, arriviste
3. a gymnastic exercise performed starting from a position with the legs over the upper body and moving to an erect position by arching the back and swinging the legs out and down while forcing the chest upright
同義詞：kip
形容詞upstart:
1. characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position
同義詞：nouveau-riche, parvenu, parvenue
