As far as I can see this project is going to take a lifetime......
Slang often has a double meaning and that is very very difficult to understand and find out about if you don´t know a language very well.
Just see what problems you have with hemmablind, which is a common word.
That´s why you learn slang after you know a language rather well.
Just to find words and add to a cat.....it will be a cat-astrophe.