Neckbreaking

1) Neckbreaking: when you see a really hot/cute guy or girl and they are so pretty you turn yout neck around to keep looking at them. A complement
2) Neckbreaking: when you see a really cute/hot guy and you just want break your neck and kill yourself. (insert family guy meme here)

see two pretty twins "wow is there a buy one get one free coffin sale? because all I see is two neckbreaking girls."

"I guess Im just a neckbreaking girl in a neckbreaking world."

she a pretty girl "wow she so pretty she makes me want break my neck just like Lennie did to Curly's wife." (of mice of men)