He Says That Tybalt Is Going To Go and Fight Romeo For Going To The Party The Day Before.
He's a well-behaved guy with a good reputation, so leave him alone.
I guess this must be Act II Scene 4. Benvolio tells Mercutio that Tybalt has sent a letter for Romeo to the Montagues' house, but also that Romeo did not come home at all the night before.
Lord Capulet is Juliet's father, Lady Capulet is Juliet's mother and Lord Capulet's wife, Tybalt is Juliet's cousin and Lady Capulet's nephew, Nurse is Juliet's, well, nurse (as well as a good friend to her), Samson, Gregory, and Peter are all serving men of the Capulets. :)
Montague has this line in Act I Scene 1: "Who set this ancient quarrel new abroach? Speak, nephew, were you by when it began?" Benvolio answers him so we must assume that Benvolio is his nephew. That makes Benvolio Romeo's cousin.
Capulet calls Tybalt a "princox". The OED says it means "a pert, saucy, boy or youth" which you can get from the context. It also says it means the same as a "coxcomb" which suggests that it comes from the strutting, arrogant behaviour of roosters.
The Prince gives Romeo the punishment of Banishment.
Your question refers specifically to the 1996 Baz Luhrmann film of Romeo and Juliet, in which all references to swords are treated as references to pistols, as if "sword" had become a slangy way of talking about guns. No other production of Romeo and Juliet does this and the scene you describe is certainly not in any other production. It occurs in Act III Scene 1 of the play, just after Tybalt has spotted Romeo and called him a villain. To understand what is going on, you need to know that Tybalt has intended to challenge Romeo to a duel since Capulet refused to allow him to fight at the party. Reference to that was cut from the film, but it is in the play, and it explains this scene. One way of fighting duels is to have both parties walk a number of paces, turn and fire at each other. They get one shot each. In all duels, the participants do nothing themselves but are aided by "seconds" or assistants. The fact that Tybalt utters an insult, then puts his hands in the air, and has his "second" remove all bullets but one from his gun is a signal that he is proposing, not a free-for-all brawl, but a formal duel. Mercutio assumes that Romeo will of course accept the challenge and, offering himself as "second" to Romeo, goes to prepare Romeo's gun. But Romeo shakes his head at him; he has no intention of duelling Tybalt.
Tybalt recognizes Romeo, a Montague, at his uncle, Lord Capulet's, party, and believes Romeo intends to insult the Capulet family.
Juliet, Romeo, Tybalt, Nurse, Benvolio Or . . . Juliet, Romeo, Friar Lawrence, Nurse, Capulet Or . . . Juliet, Romeo, Friar Lawrence, Capulet, Tybalt Or . . . Juliet, Romeo, Capulet, Mercutio, Tybalt Or basically Romeo and Juliet and any three of Nurse, Friar, Capulet, Mercutio, or Tybalt.
Tybalt
On the Capulet side, Tybalt, Lady Capulet, and Paris died. Tybalt was killed by Romeo, Lady Capulet died of grief, and Paris was killed by Romeo in a duel.
Capulet prevents Tybalt from fighting Romeo at the party.
Tybalt is associated with the Capulets, and he thinks of himself as a Capulet, but he is actually not a Capulet at all. He is the son of Lady Capulet's brother, and Lady Capulet is only a Capulet by marriage. That is why it is Lady Capulet, and not Lord Capulet, who is so furious with Romeo after he kills Tybalt.
Tybalt wants to fight Romeo... :)
Tybalt reacts with anger and challenges Romeo to a duel when he recognizes him at the Capulet's party. Lord Capulet, however, intervenes and tells Tybalt to let the matter go, as he does not want any trouble at the party.
Tybalt was upset at the party because Romeo arrived at the Capulet party. Tybalt believes that Romeo is mocking him and the Capulet name by arriving at the party. He attempts to fetch his rapier but his uncle, Lord Capulet stops Tybalt.
tybalt recognized romeo at the party
Tybalt
Juliet recognizes Romeo's voice at the Capulet's feast.