1 definition by OhYouseWantedSomeWords
A mad cunt, eh. Most often in spoken language the word "maddo" is used to describe a friend or a close person who is somewhat reckless, strange or hyperactive. Although the word has a negative undertone to it, it is quite often used in a friendly, banterous, positive way to jeer at your mate who's being a nutter.
Person A: "Eh, you ken Craig right? He downed a whole bottle of Smirnoff the other night, then went off running the streets, bollocks naked, quoting the bible."
Person B: "Mate he's a fucking maddo."
Person B: "Mate he's a fucking maddo."
by OhYouseWantedSomeWords January 12, 2018