仗势欺人

1.take advantage of one's or sb. else's power to bully people; bully others on the strength of one's powerful connections or position; draw one's weight about [around]; have powerful backing and bully the common people; kick people around; pull rank on others; insult people because one has influence; bully others relying on sb.'s influence; rely on one's power and bully people; abuse one's power and bully the people; trust to one's power and insult people; take one's position to lord it over innocent people; throw one's weight about [around]; make use of sb.'s position to bully others