1 definition by Rodneyjones

Top Definition
An incorrectly baked batch of brownies, cooked at high elevation at the wrong temperature (not having compensated for the difference in air pressure) resulting in a flat gooey texture.
Liz: Next time you bake, be sure to adjust the oven temperature so we don't have to eat these mountain brownies.
by Rodneyjones January 30, 2010
Mug icon
Buy a Mountain Brownie mug!