Mostly used by people jealous of said "bottle blondes"... these people are occasionally "bottle blacks" (people with unnaturally black hair) and sometimes classified as emo.
Here is a easy way to tell a real blond from fake: Look at the eyebrows!
WARNING!!! Avoid bottle blonds because if you last more than 10 years with them there hair will fall out from peroxide poisoning!
Stupid bottle blonde