brandish

To move or swing a weapon back and forth, particularly if demonstrating anger, threat or skill.

He brandished his sword at the pirates.

Hvng be yͤ heauens vvith black, yield day to night; / Comets importing change of Times and States, / Brandiſh your cryſtall Treſſes in the Skie, / And vvith them ſcourge the bad reuolting Stars, / That haue conſented vnto Henries Death: / King Henry the Fift, too famous to liue long, / England ne're loſt a King of ſo much vvorth.

To bear something with ostentatious show.

to brandish syllogisms

Long, however, the young ſpark did not remain, before, giving it [his penis] two or three ſhakes, by way of brandiſhing it, he threw himſelf upon her, […]

The act of flourishing or waving.