When one is called "maddi," it usually means he is an ugly gremlin. A "maddi" can be found living under a bridge usually. Its hair is ginger and ugly, like himself, and it smells bad. It's extremely stupid and ugly. Did I mention it was ugly? Yes, you did. Oh, okay.
Natalia: Whoa, that thing over there looks ugly! It's all green, ginger, and ugly.
Bexie: LOLK - it must be maddi.
Justin: Kewl
Bexie: LOLK - it must be maddi.
Justin: Kewl
by Madbone February 12, 2014

Maddy sucks. She's fat and she is not talented. She's super duper fat. She ate 3 whole pizzas once! Little fatty! And she eats booty.
by Whateva4 ever April 15, 2017

A person who contains the big sad
by Ras Barry April 14, 2019

by Yourmummzyyy April 13, 2019

maddy is the bestest best friend in the whole wide world. she’s funny and supportive and encouraging, makes you laugh, is there for you whenever you need her, and would fight anyone who is mean to you. she’s the absolute best friend to have and you should really have a maddy in your life. she will make you happy forever and be a best friend soulmate for life. if you have a maddy in your life, then you better appreciate her because she deserves it
by shiningyoongs February 21, 2020

Maddie is the most amazing girl ever. She's gorgeous, funny, incredibly hot, and perfect in every single way. She's the best girlfriend ever, and means the world to the lucky guy that has her in his life. Her eyes are easy to get lost in and most people will find themselves staring into them without realizing. She's a bit outgoing and very social, and she's easy to get to know. She's open-minded, trustworthy, hard-working, kind, caring, and an overall amazing girl. Her boyfriend would do anything for her, and she has him roped in for life. She also visits urban dictionary a lot, a shit ton.
by MaddiesBF December 5, 2021

The most common slang term used for the drug Modafinil, which is used for the treatment of disorders such as narcolepsy, shift work sleep disorder and idiopathic hypersomnia among others.
Sold illegally without a prescription, it is also used commonly amongst students as a wakefulness-promoting drug to improve focus during revision.
Sold illegally without a prescription, it is also used commonly amongst students as a wakefulness-promoting drug to improve focus during revision.
by The Turtle Ninja June 10, 2018
