-Dude, I don't understand a word the people on my High School says!
-Don't worry. Just check out Urbandictionary.com and you will do just fine.
-Thanks man.
*middle of the conversation*
-Person 1: If you don't know what it means, you should look it up on urban dictionary, you will find the answer there!
-Person 2: What's urbandictionary? I've never heard about it before :(
-Person 1: It's a real gift from God, a website which explains the meaning of every single English word, it can be a slang, a joke, a meme, anything, you will find your answer there!
-Person 2: Okay, thanks a lot ;)
-Person 1: Np! :)
This is the longest definition on Urbandictionary. Even longer than the second longest. (Duh...) Since M is a tied with W for the biggest character on most fonts, this is the longest definition possible.