what is the "lord of the flies"? use a quote which helped you understand the term.
Here is the source for the term "lord of the flies".
"The title is said to be a reference to a line from King Lear - "As flies to wanton boys, are we to the gods, — They kill us for their sport". (King Lear Act IV, Scene 1)  It may also be a reference to the Hebrew name Beelzebub (áòì æáåá, Baal-zvuv, "god of the fly", "host of the fly" or literally "Lord of the Flies"), a name sometimes used as a synonym for Satan.
This comes from the Wikipedia. http://en.wikipedia.org/wiki/Lord_of_the_Flies
Check this site for some insight into the meaning of the title.