The higher the terms are in the list, the more likely that they're relevant to the word or phrase that you searched for. Note that this thesaurus is not in any way affiliated with Urban Dictionary. Finally, you might like to check out the growing collection of curated slang words for different topics over at Slangpedia.
Popular Slang Searches. Urban Thesaurus crawls the web and collects millions of different slang terms, many of which come from UD and turn out to be really terrible and insensitive this is the nature of urban slang, I suppose.
There is still lots of work to be done to get this slang thesaurus to give consistently good results, but I think it's at the stage where it could be useful to people, which is why I released it. Finally, you might like to check out the growing collection of curated slang words for different topics over at Slangpedia.
These indexes are then used to find usage correlations between slang terms. This is simply due to the way the search algorithm works.