狗仗人势

to take advantage of one's position to bully people (idiom); to kick people around

lit. the fox exploits the tiger's might (idiom); fig. to use powerful connections to intimidate people

to use one's strength to mistreat people (idiom); to bully

to beat a dog and bully its owner; fig. to humiliate sb indirectly by bullying a subordinate

to rely on power

to use one's strength to bully the weak (idiom)