This is a list of words that you probably haven't heard about.

Bumfuzzle- to confuse or fluster

Billingsgate- coarsely abusive language

Mondayitis -Not wanting to go back to work after the weekend.

Widdershins-in a left-handed or contrary direction; counterclockwise
Snollygoster - A person who can't be trusted.
Lollygag - To move slowly, fall behind.