Commonly called a "polecat", but, the fitch is not a cat, and neither is it a skunk (which is also called a "polecat"). The fitch is the wild ancestor of the (domesticated) ferret.
I sure am glad someone decided to try to tame a fitch 10,000 years ago, because I just love my sweet littleferret.
a word to say when you either want to say fuck to someone or call someone a bitch if you don't want teacher/relative to know. also a combination or fuck and bitch.
Person 1: I made out with your girl last night.
*relative/adultt walks in*
Person 2: You Fitch! Fitch you!