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Corona Mathematica

A brain-unfriendly but wallet-friendly Singapore math title that irreverently leverages on the deadly coronavirus to teach creative mathematical problem solving—when the product of two negatives (Covid-19 and school math) is a positive (a confident and skilful problem solver).

Prof. Ian is trying to kill two mathematical birds with a numerical stone in 2020: he wants to launch “Singapura Mathematica” and “Corona Mathematica” at the same time in the midst of rising infection and mortality rates nationwide.

by MathPlus December 01, 2020


isabella corona

The best girl to have relationship with she will be the best girlfriend ever she try her beast to make you happy she will also do anything for her friend if you find one keep her and take care of her. she is one of the most kindest and caring people you’ll ever meet

Boy best friend “that’s Isabella corona she’s pretty well known around the school for her last name and for her kindness!”

New kid “oh cool

by DabiXhawks<3 January 27, 2021


Smith Corona

Da brand of "dinosaur" mechanical typewriter dat made you so frustrated dat you'd likely need to drink fresh-lime-imbued pale-ale from a clear-glass bottle in order to tolerate da ordeal of using said clackety-clack unit to create documents.

In my younger days, I hadda use a clunky Smith Corona if I didn't wanna laboriously write everything out by hand. I'm a absolutely lousy typist even today, and therefore I totally wear out da "backspace" key on my computer-keyboard; dunno how I didn't take up drinking as a younger dude from all of dat stress of trying to hit da right keys every time.

by QuacksO August 26, 2019


corona 15

When person self quarantining for Corona Virus (usually a female) eats a ton, and precedes to sit on her ass and gain 15 lbs.

Did you see Suzy after quarantine? Talk about a Corona 15!

by Northerly March 24, 2020


Corona Cancer

What King Charles has

We want to wish the king a good recovery from his corona cancer.

by Nanabozhoo February 05, 2024


Corona crush

Someone you have a crush on that you want to be in quarantine with so that you can spend two weeks together at home alone.

Rohan is so cute, he's definitely my corona crush.

by secr3tuser March 18, 2020


brown corona

Dipping your dick in a Mexican girls but then putting it in her mouth.

I would have shared my drink with her but that brown corona would have made it taste like the inside of her dirty Mexican asshole

by A~Pizzle April 09, 2016