Why is squid called squid in the book Holes by Louis Sachar?

In the book "Holes" by Louis Sachar, the character known as "Squid" gets his nickname due to his habit of squirting other campers with a water bottle. This behavior is reminiscent of a squid squirting ink as a defense mechanism in the wild. The nickname "Squid" serves as a playful and fitting moniker for this character, highlighting his mischievous nature and adding depth to his personality in the story.