brandish
v[Tn]
wave (sth) in a triumphant or threatening way; display 得意地或威胁地挥动(某物); 显示
brandish a gun, a knife, an axe, etc 挥舞枪、刀子、斧头等
The demonstrators brandished banners and shouted slogans. 示威者挥舞著旗帜, 呼喊著口号.
The reader's hair stands on end when he reads in the final pages of the novel that the heroine a dear old lady who had always been so kind to everybody, had, in her youth, poisoned every one of her five husbands.