The Montagues and Capulets have a long standing feud, an ancient grudge, the mutiny in this case is that the feud has been cold for some time but is now turning hot again and mutiny in our meaning of it pertains because to indulge in violent feuds between families is mutinous against the public order - in other words to have a feud with murders and public fighting you are definitely rebelling against the social authority that decrees this kind of thing should not happen.
The civil blood is not hot and boiling over because it is "civil" as in civilized, but also there is civil blood - the blood of the civilized civillians who are not members of your little feud that will always get hurt when there is violence on the scale of two large and rich households having a feud which means you get the civil blood (of the civillians) on your civil (civilized) hands.
I get that you don't get it, but this is one of those weird things for me - like when you try to explain how some relatively simple bit of code works to a non-developer and they act like you're a madman.
I'll note here that as with much of Shakespeare, there are really more edges connecting to the node civil here than the two ones I point out, which I guess is part of the enjoyment of the reading for me.
The Montagues and Capulets have a long standing feud, an ancient grudge, the mutiny in this case is that the feud has been cold for some time but is now turning hot again and mutiny in our meaning of it pertains because to indulge in violent feuds between families is mutinous against the public order - in other words to have a feud with murders and public fighting you are definitely rebelling against the social authority that decrees this kind of thing should not happen.
The civil blood is not hot and boiling over because it is "civil" as in civilized, but also there is civil blood - the blood of the civilized civillians who are not members of your little feud that will always get hurt when there is violence on the scale of two large and rich households having a feud which means you get the civil blood (of the civillians) on your civil (civilized) hands.
I get that you don't get it, but this is one of those weird things for me - like when you try to explain how some relatively simple bit of code works to a non-developer and they act like you're a madman.
on edit: changed designer to non-developer