A new science invented by a high school senior at Richland Collegiate High School.
After noticing most Engineers are men she decided to try and promote engineering for women. Unfortunately, most of the women didn't understand how they could make a sandwich with mechanical engineering, or even what mechanical engineering was.
In response to her failure, she founded this new academic science specifically for women. Domestic engineering is the design of all the household necessities not already designed by men. These include, and are limited to, sandwiches or babies.
I'm glad that chick finally got knocked up, maybe now she'll drop up and take up Domestic Engineering like a real woman.