It's a pun because Mercutio wasn't a serious man, and grave has 2 meanings: 1. serious, 2. burial site.
This pun is used by Mercutio when he gets wounded by the sword and is dying, so even though the phraseology "grave man" indicates that he is referring to himself as serious, he is actually referring to himself as dead... a man in a grave.
Mercutio says this as a witty play on words, implying that he will be in his grave tomorrow due to his impending death. It also serves as a dark foreshadowing of his fate in the play, where he is fatally wounded.
Mercutio says this because he cannot help making jokes. He knows he is dying. He tells his friends that tomorrow he will be a grave man, which on the face of it means that he will be serious tomorrow. But he really means that tomorrow he will be a man in a grave, because he will be dead.
Mercutio is struggling with the reality of his own death. His first reaction is to be funny--to make a pun. But it is not funny at all. It is intensely sad and pathetic. In fact, his attempt to make light of his fatal wound make us feel even sorrier for him than we otherwise would. In the end, Mercutio feels anger at his impending death, and he directs that anger at Romeo and at all of the feuding Veronese ("both your houses"). We see Romeo redirecting that anger from himself to Tybalt. So, from pathos, the mood shifts abruptly to anger. then Romeo wants to kill Tybalt.
Revenge A+
It is foreshadowing that Mercutio is going to tomorrow. Grave is being used as a pun.
Mercutio says, "Ask for me tomorrow and you shall find me a grave man."
The word is grave. After having been stab by Tybalt, Mercutio dies. His last words are..."Ask for me tomorrow, and you shall find me a grave man...."
Paronomasia is punning or making a play on words by taking advantage of the fact that some words have more than one meaning. Mercutio, who has just been fatally wounded says " ask for me tomorrow and ye shall find me a grave man". This uses the fact that grave has two meanings. He sounds as though he is saying he will be grave and serious tomorrow but it can be also be heard that he is saying he will be dead and ready for the grave.
revenge
He cursed the Montagues and Capulets. What he says is "A plague on both your houses!"
It is from Romeo and Juliet and it has two meanings. A "grave man" means hes going to be dead but it also meant back then that you are a serious person. So basically he meant ask me tomorrow and Ill be serious about it, but really meant, ask me tomorrow and ill be dead.
This line is spoken by Mercutio in William Shakespeare's play Romeo and Juliet. It is a humorous remark made by Mercutio before his death.
Mercutio's pun as he died in Shakespeare's "Romeo and Juliet" was a play on words between the word "grave" (meaning serious or solemn) and the word "balm" (meaning healing or soothing), as he said, "Ask for me tomorrow, and you shall find me a grave man." This moment highlights Mercutio's wit and humor even in his final moments, adding complexity to his character and the tragic atmosphere of the play.
It's an example of a pun.
To help you, here is a famous quotation from Shakespeare: "Tomorrow and tomorrow and tomorrow creeps in this petty pace from day to day." (Macbeth) Here is another one: "Call on me tomorrow, and you will find me a grave man." (Romeo and Juliet) Basically, "tomorrow" is "tomorrow"--not surprising really, since Elizabethan English is not a different language from our own.
Mercutio's character is believable because he embodies the nature of the play which is a tragedy. Unlike the other characters, Mercutio acknowledges his awareness that specific people are the cause of his death and not outside forces that represents the superstitious elements found in the play.