Language play is as old as language itself. Children invent private codes, traders develop argots, subcultures create shibboleths. Paste any text or provide a URL and apply one or more of these ten transforms.
Some are pure phonetic games (Pig Latin, Ug Talk), some historical trade languages (Backslang), some children’s TV inventions (Ubbi Dubbi), some hip-hop creative play (Izzle), and one is Swedish criminal slang that became a national pastime (Rövarspåket).