To swagger about with borrowed authority; to use someone else's power or influence to put on an impressive show of strength or to intimidate others.
新来的经理助理，因为老板对他很器重，所以有些狐假鸱张，对同事颐指气使。
The new assistant to the manager, feeling important due to the boss's trust, began to act with borrowed arrogance, ordering his colleagues around.
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