1 definition by Larkspur15

A term started by a group of friends at a lunch table, and was eventually spread to Imgflip by Larkspur, their Imgflip username. It's basically another way of saying choccy milk.
Lunch Lady: What would you like to drink with that?

Eater: Brown Calcium, please!

Lunch Lady: What is that?

Eater: Chocolate milk.
by Larkspur15 February 20, 2021
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