Urban Dictionary is a slang dictionary with your definitions. Define your world.
I heard someone use the word “kife” the other day, and I didn’t know what it was. My sister pulled up Urban Dictionary, and told me what the definition was.
It appears to be a wiki-type dictionary. You can add a word, and define existing ones. The definitions can be ranked, with the definitions with the highest ranking at the top.
Be careful, since anyone can post a definition, or define a new word/phrase, some are profane and vulgar.
In case your wondering, you can see the definition of “kife” here.
Kife: I’m a Canadian, and I’ve always heard the word used to mean dirt, as in the yiddish word schmutz. We used it at summer camp to describe general purpose dirt or bits of leaves and twigs that got into/onto your stuff, including your dinner while eating around the campfire.