Mattnip 

When a Matt or Matthew goes completely bonkers with 1000% energy and excitement.

Matt finds another pen
"Jeez Matts been on the "Mattnip", hes mentally excited about finding a pen !"

Mattnip by NotYourBrotherHAHA March 20, 2024

Mattipulation 

The act of deceiving females into thinking you are a good person so they will blow you behind cineplex. Made famous by Canadian Matthew Xavier Lafrance, who is famous for having sex with over 50 girls in 10 day at the Ottawa Bluesfest music festival in 2017.

Utilization of the past tense (Mattipulation)

He Mattipulated her into sexual intercourse, despite her boyfriend's pleas.

Mattipulation by GreasyFrenchy February 1, 2020

Mattnoply

A board game made by Matthew William Vega from Mattolina LLC based on his life and a song album release 2022 by Dr.Energizer(6) where he went to RUMC or Richmond University Medical Center for crying at his parents for no reason and was traumatize by RUMC. It also mean a open source utopia monopoly where anyone can support and write code for Mattolina LLC products and services. Where his trauma of dealing with going to RUMC and hardships causes to make a company called Mattolina LLC and take back control of life. To prove people to world that he would become success.

"Today I release Mattnoply board game." I would take over and become a Mattnoply." I would not go to RUMC and become a Mattnoply."

Mattnoply by Mattolina LLC July 21, 2022

mattniana

Mattniana is a name of a son/daughter for a couple named Matt and Ana. It's a Filipino word "Matt ni Ana" which means Matt of Ana. This can also be used as Matt Niana

I fell in love with a girl named Ana Bien, and when we got into a relationship. We used Mattniana as a imaginary name for our son/daughter

mattniana by Kutsarangpilak June 7, 2021

Mattniklo 

A great, caring, talented and gorgeous person: He's mostly known for his EP Lost BOF

Bro I like listening to Mattniklo

Mattniklo by matthiash January 9, 2021