The code word for gay. If you work with someone who is gay or you suspect they are and you want to make a joke or just call something femme then chicken salad is your frase. The Wu Tang taught us what a chicken head is. So take a man that has commited himself to the life of a chicken head while tossing salad than you will understand the term "chicken salad"
If your friend chooses pinot grigio over budwieser; chicken salad. If someone you work with talks with a lisp and tells you how good anal was with his "ex"; chicken salad. If you find two of your male co-workers with a lemon, broomstick, pan spray, latex gloves and pictures of the employee party; chicken salad.