mateoster 

To be a punk or weak mobster or the Myspace app Mobsters.

You punk ass mateoster.

mateoster by HellDawg April 29, 2009

Mathster 

A master of math

Kelsey: Yo, Sam can you help me with this? Mr. Igloo assigned me one of Einstein’s Gravitational Equations and I don’t know where to start, it’s soo ridiculously hard!

Sam: No way in hell girl, too crazy difficult. Ask Marvin though. He’s a mathster!

Mathster by SammieBe10 December 6, 2011

maestering 

The art of being shady, dishonest or otherwise manipulative for personal gain.

M: "Yo, sorry I ghosted you for a couple months. Can I come over just to chill and watch Game of Thrones with you tonight?"
N: "Nah fam! I can tell you're strait maestering rn. Stay outta my dms!"

maestering by ShoBre August 16, 2017

Mathsterbate 

To require kleenex after mathematical gratification

Sophia helped Luke mathsterbate, then swallowed his cumulative frequency

Mathsterbate by Tom and Sarah July 28, 2008

Mathsterbation 

Working really hard on a sum just for the feeling you get once you have solved it.

Guy #1 "OMG what's Elliott doing with his math book?"
Guy #2 "Eww! he's Mathsterbating!"
Guy #1 "So that's why he's sweating so much! Have fun with your Mathsterbation, Freak!"

Mathsterbation by Disco Alpingu April 1, 2007

Mangoster 

When a specific individual has run low on their supply on the fruit, Mangifera indica. Commonly known as a mango raids a functioning supply chain with this specific fruit. The individual that did the robbery would be commonly known as a mangoster.

*The mangoster has successfully robbed the second supply of incoming mangoes!*

Mangoster by Blue_Underlined_Name August 19, 2019

Mattster 

An emo mod of the TeenHut forums.

Targeting specific users, he'll typically wait for the slightest opportunity to infract one of these said members mostly based on past butthurt. Instead of admitting his mistakes and making amends, he insists on backing himself (in Mattland, looking like an arse) and saying things like "You're dumb" and the ever-popular neg rep.

His e-girlfriend, Lana (who's also emo; imagine that), is also an active member of the forum. Using her Ultimate VIP membership to return neg reps, she is often found running to her mod e-boyfriend every time she's a little butthurt. This often results in the butthurter getting infracted; and in some cases, banned.

He considers himself the alpha male of the mods, and his fellow mods don't dare disagree with his infractions.

Basically, do not expect much from him, because through his thick eyeliner (borrowed from Lana, of course) he sees the internet as the real world. Remember kids, the internet is serious business.

User 1: "Let's make an Encyclopedia Dramatic article for TeenHut"
Mattster: "How about I follow what was written about me.. And ban everyone who posted here? =D"
User 2: "Hows about you stop taking shit so seriously, and take a joke?"
Mattster: "olol fuk u 2"
Mayank: *facepalm*

Mattster by Crapster August 5, 2009