Usually a nickname for a guy named matthew or a girl called matilda.
They are very chill people that dont give a flying fuck about anything but are slight attention seekers, and don't follow societal norms, they probably figured out they were gay at like 9. Matti's have heaps of friends, and most of them are of the opposite sex. A Matti overthinks things and has somehow convinced themselves that they are either very sick or none of their friends like them.
A Male Matti is always very effeminate and sassy and probably buys cheap mascara with his pocket money, A female matti has probably already enlisted in the Marines. If you meet a matti you must be friends with them and never leave them or they will beat your ass.
They are very chill people that dont give a flying fuck about anything but are slight attention seekers, and don't follow societal norms, they probably figured out they were gay at like 9. Matti's have heaps of friends, and most of them are of the opposite sex. A Matti overthinks things and has somehow convinced themselves that they are either very sick or none of their friends like them.
A Male Matti is always very effeminate and sassy and probably buys cheap mascara with his pocket money, A female matti has probably already enlisted in the Marines. If you meet a matti you must be friends with them and never leave them or they will beat your ass.
Person 1: OH my god did you hear that Matti punched someone yesterday?
Person 2: Yeah, that's so unlike them they are usually sooo chill
Person 2: Yeah, that's so unlike them they are usually sooo chill
by PewPewmotherdamner October 3, 2021
Get the Mattimug. Person: What will you do tomorrow?
Justin: Tomorrow is Mattie day, i'll be spending it with my Mattie.
Justin: Tomorrow is Mattie day, i'll be spending it with my Mattie.
by Kode152 April 11, 2022
Get the Mattie daymug. Matty liddleing myself
by Anonymous....12..... September 17, 2017
Get the matty liddlemug. Mattie is a super mean wo-man, she is always judging other people but gets mad when she is judged. Mattie is super short and always looking for attention. She is very lazy and not very smart
by Annynomous June 25, 2018
Get the Mattiemug. Fatty Matty c is fat
by Fatty matty c January 30, 2020
Get the Fatty matty cmug. 
A boy from Philly who likes to take it in the ass! Matty is never satisfied and always attempts to achieve perfection. He also is a student of the greatest guy ever for piano! He likes to poop a lot but doesn't mind a good pee every while. A Matty is made for a girl named Christina.
by RocketsRule777 October 5, 2020
Get the Mattymug.