Definition & Meaning of "squeaker"in English

What is the origin of the term "Squeaker" and how is it used?

"Squeaker" is a slang term used to describe a person who is childish, high‑pitched, or irritatingly immature. It likely originated in the early-to-mid 20th century in English, drawing from the sound "squeak," which evokes small, sharp, or youthful noises, and by extension, childish or annoying behavior. The term is often used in informal, social, or online contexts, especially to tease or criticize younger people or those acting immaturely. It is mildly derogatory but generally lighthearted, more teasing than deeply offensive.