How did squid get his nickname in holes?

In "Holes" by Louis Sachar, the character known as Squid gets his nickname due to his long, thin limbs, which resemble those of a squid. The nickname reflects his physical appearance and serves as a way for the other boys at Camp Green Lake to identify and differentiate him. Throughout the story, nicknames play a significant role in shaping the friendships and dynamics among the campers.