This is a conjunction of two words.
The 1st word has been a crowd favorite for years and comes from the old English criminal act - acronym for Fornication Under Carnal Knowledge (F.U.C.K.). Since it has morphed into a word to be used in limiltess applications including the word fouche.
The second word is douche coming from the feminine hygene product (the douche bag) used to clean out a stincky hooha. Recently it has been used in context to describe anything from nasty breath to rude rappers that intrupt award shows to infuse their meaningless personal opinions.
When the pairing has been made then the applications are limitless, very similair to the word fugly, but so much more. Take it for a test run and use it freely. You will find its application easy to use and fitting in a wide verity of topics. Have fun kids! make sure to comment freely and often!