A script kiddie, also known as skiddie and skid for short, are individuals who use scripts or programs developed by a real hacker, to run a cheat into online or offline games, and to attack or break the computer systems and networks, without the proper understanding how the automated tools that they've used work. Most skids are an easy gamer whom learn to search the hacks of the games that they want to cheat, with the help of the Internet. Then, for the cause of what they've hearing, they're learning to search different kinds of hacks, especially a hack for a website, mostly a Denial of Service. Skiddies often used Leet or 1337, also known as Leet speak, substituting letters with numbers and symbols, abbreviating a word, and substituting word's suffix with another suffix or adding suffix to a word, just to notice the readers that they're a hacker. But in fact, they're not, they are just a script kiddie.
An elite hacker is used to describe the most skilled hackers depend on their classification or type, such as white hat or black hat. They are experts in the line of their work, and can find another different way to hack or to secure a computer system and network. They are an experienced programmer that can developed a computer program or system, depend on their classification. They sometimes use Leet speak too, substituting, abbreviating or short cutting, adding, and encrypting the words in hacker's slang, like a looser grammar and loose spelling, to avoid search engines from catching keywords on their websites and groups' news. Even though they're the skillful hackers whom originate the Leet, they just use it, only if it's needed because they (basically) do not want the other people to knew that they're a hacker.