Liuhair 刘海儿 is fringe/bang before your forehead. In Mandarin people pronounce this word with an -r sound at the end, though lots of southern people do not, in which dialects there is no -r sound therefore it's difficult for them to make the sound.
The origin of this word is an old folk tale: a smart boy/young man called Liu Hai 刘海 fought and defeated the evil monkeys and their golden toad and form then on lived a peaceful and happy life(/ with his wife). There are some dramas in tradional Chinese operas, as 刘海砍樵 Liu Hai cuts firewood, 刘海戏金蟾 Liu Hai fools the Goden Toad.