There are many words that I hate from the Twilight Series, primarily because they are used in a completely inappropriate context.
Example: masochistic. (As in Edward's comment, "What a sick, masochistic lion.") A masochist is a person that obtains sexual pleasure in their own punishment or pain - that is, in other people assaulting them.
Thus, Edward calling himself a "masochist" denotes that he takes sexual pleasure in being abused. Now, surely he is the vampire - the supernatural being that has dominance over Bella. Why, then, would Bella be assaulting Edward? The most logical explanation is that this is simply a case of Stephenie Meyer using big, polysyllabic words that make her sound intelligent despite her having absolutely no knowledge of the actual definition of the word.
Just as an aside, the word that Stephenie was actually looking for was "sadistic" (derived from the word "sadist"). A sadist is a person that obtains pleasure (again, often sexual) from inflicting pain on other people. This is probably more suited to Edward's interpretation of himself - someone obtaining pleasure from influencing or inflicting pain on a weaker being.
Perfect, flawless, glittering, marble, cold, sculpted. Why? Because they are used far, far too many times.
Vampire. Why? Because the Cullens are not vampires.
Were-wolf. Why? Because Smeyer admitted in B.D. the wolves were not werewolves, but shape-shifters. She didn't explain why Edward knew this and didn't say anything - at least, not satisfactorily, and then she never came back to it.
Scintillating (from this quote: He lay perfectly still in the grass, his shirt open over his sculpted, incandescent chest, his scintillating arms bare.). Why? This is what scintillating really means:
Scintillating – adj
1. animated; vivacious; effervescent: a scintillating personality.
2. witty; brilliantly clever: a scintillating conversationalist; a play full of scintillating dialogue.
BECAUSE IT DOESN'T EXIST, NOR SHOULD, WILL OR HAS EXISTED
And I also don't like "the lion eats the lamb..." because I think its reffering to one of Jean DelaFontaine's fables, which are really good, and pretty random since Edward isn't palnning on eating Bella.