What are some alternatives?
When comparing Slang-Dictionary.org and Lingoes, you can also consider the following products
The Online Slang Dictionary - Learn thousands of real slang words or add your own.
Dictionary.com - Dictionary.com is the world’s leading digital dictionary. We provide millions of English definitions, spellings, audio pronunciations, example sentences, and word origins.
GoldenDict - The program has the following features: Use of WebKit for an accurate articles' representation, complete with all formatting, colors, images and links.
SlangSite.com - SlangSite.
Google - Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
SayWhat - A fun and informative Video Urban Dictionary.