If you don't know this word, I don't know how you're on this site right now.
These are two possible reasons why you typed this word into the search bar.
1. You are incredibly dumb.
2. You have something important to do and your procrastinating on it.
I'm assuming you searched this word because of the second reason so GET BACK TO WORK!!!!!
"I have this project to do but I don't want to do it. I have an idea, I'll search urbandictionary.com on urbandictionary.com!"