TYBALT: Mercutio, thou consort’st with Romeo, –
MERCUTIO: Consort! what, dost thou make us minstrels? an thou make minstrels of us, look to hear nothing but discords: here’s my fiddlestick; here’s that shall make you dance. Zounds, consort!
– William Shakespeare
Romeo and Juliet, Act 3, Scene 1. Mercutio is just looking for an excuse to start a quarrel with Tybalt. When Tybalt mentions Mercutio consorting with Romeo, Mercutio interrupts him and puns on the other meaning of "consort" – an ensemble of musicians. He pretends to be insulted at being called a "minstrel" and points to his sword, calling it his "fiddlestick," whose music Tybalt will be made dance to. Tybalt’s simple inquiry about Romeo is turned by Mercutio into a manufactured insult and invitation to fight.