An aesthetic that is typically associated with long skirts, mugs that don't work properly, fancy hats on walls, a burning hatred for math, and the saying "shut the door" (meant literally).

Also known as "Mathteachercore", the word rose in popularity in the U.S. in 2014 due to the spike in popularity of the well-known band kidzbop.
Morgan: oi bruv, do reckon i look nice in this dress?

Carrington: Yeah mate, looks well good. But i reckon it looks a bit Ms. Russocore.\\

Morgan: Crikey, i think you're right.
by Really_Stinky_Feet345 May 12, 2021
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