v. To "get your shit in one sock" means to get organized, to "pull yourself together," to regain your composure. Having to use more than one sock to hold a given volume of feces is considered wasteful and inefficient, if by careful planning a single sock would do the trick. Thus, the essence of this phrase is a metaphor for thriftiness.
"Listen: you've been absent from class five days, you never turn in your homework on time, you refuse to take your Ritalin like a good boy, and your foul language is out of control! It is time to sit down one-on-one with the guidance counselor and get your shit in one sock, young man."
by Carl Willis November 7, 2005