The phrase "little stick" refers to a small and thin piece of wood or object, often used to describe something insignificant or of little importance. Full definition
Her blog is really unique, and I had to include it because she draws hilarious little stick figure cartoons along with every posts, which makes it a blast to read. (momtricks.com)
My baby was a skinny little stick just barely on the growth chart for weight but he consistently gained weight and met all of his developmental milestones. (themilkmeg.com)