狐假虎威的英文：
[Literal Meaning]
fox/by/tiger/power
The fox uses the tiger's power

[解释]
一仗着别人的势力欺负人。

[Explanation]
to bully people by flaunting one's powerful connections

[例子]
他实际上只是一个小人物，狐假虎威，仗着老板的势力骗吃骗喝。

[Example]
He was just a small potato and adorn himself with borrowed plumes. He had many free treats of dinners for his boss' influence.

[英文等价词]
adorn oneself with borrowed plumes
strut in borrowed plumes

The ass in the lion’s skin
狐假虎威

The fox borrows the tiger's terror;assume someone else's authority to browbeat others
狐假虎威