Arrogant and domineering; throwing one's weight around; bossy and lawless

describes someone who is overbearing, bossy, and acts in an arbitrary or high-handed manner

(variant form) to be bossy and high-handed; to act in an unconstrained and overbearing manner

behaving in an arbitrary and overbearing manner; acting high-handedly and trampling on others

behaving in a way that is extremely arrogant, bossy, and overbearing