expression, godan verb (-su)
throw one's weight around as a ...; act like a ...
Used after a noun (e.g., 先輩, 上司) to mean acting in a self-important or authoritative manner typical of that role. Often carries a negative nuance of being overbearing.
See also: 先輩風を吹かす
彼はいつも先輩風を吹かして、後輩に命令ばかりしている。
He's always throwing his weight around as a senior, constantly ordering his juniors around.
あの上司はすぐに上司風を吹かすから、部下から嫌われている。
That boss is quick to act all high and mighty, so he's disliked by his subordinates.