What does Fershnickered mean?

Drunk, intoxicated, extremely drunk.

What does shucks mean in slang?

Shucks is most commonly used to indicate bashfulness, modesty, or disappointment. It's an interjection, which is a short way of expressing an emotion, usually in one word. Shucks has a folksy, rural feel to it. ... Both senses of the word are used primarily in the U.S. and Canada.