Because refrigerator doesnt need the d to make that sound. Fridge is a slang and it needs the D to make the same sound as the full word. Frige doesn’t work. Frig doesn’t work. Hence the D. Its not difficult.
tags: Ignoble Interests, text,spelling,fridge,refrigerator,
from: https://ignobler.tumblr.com/post/140934575303