unfrebrezable 

a smell so bad not even frebeze can help you

an unbelievably bad stink

dude did you just fart on my coat... oh god it stinks... that's...that is unfrebrezable..

unfrebrezable by n0rt November 18, 2009

UnFebrezeable 

A funk so bad that you can even cover it with Febreze.

I got into my car after the valet and it was ripe. I spray an entire bottle of Febreze and the smell was still there. It was UnFebrezeable.

UnFebrezeable by adamrafael4 May 18, 2015