Throw (one's) weight around American British phrase
To exercise your authority or power in an aggressive and/or annoying way to get what you want.
John complained that his older sister was always throwing her weight around when mom wasn't home.
Since he threw his weight around, everyone has harbored a grudge against him.
If he hadn't thrown his weight around like that, he wouldn't have been beaten.
The verb "throw" must be conjugated according to its tense.
This phrase dates back to the early twentieth century and uses "weight" in the sense of “authority.”