Great news! Registered users can now add new slang words via the website. Click the "Submit" tab to get started.
Also, I added a new option to Usage Voting: "I no longer use this slang word." Now it will be possible to identify slang that's no longer in common use.
Plus, there's 3 new sets of slang updates:
Come by the site, sign up or sign in, and go to town adding missing slang words.
-- Walter (email@example.com)