Definition of yapper ' Yapper ' refers to someone who talks too much, or the mouth of such a person. It comes from the verb 'yap', which is a very informal way to say 'talk', and it's usually used when someone is talking too much. Yapper"Yapper" is an informal term often used to describe a person or thing that talks a lot or makes a lot of noise. "My little cousin is such a yapper; once he starts telling a story, he just doesn't stop!" |Someone who talks to much informally "My cousin, whe's such a yapper."的定义 Definizione di Yapper " Yapper " is an informal term often used to describe a person or thing that talks a lot or makes a lot of noise. "My little cousin is such a yapper ; once he starts telling a story, he just doesn't stop!" |Someone who talks to much informally "My cousin, whe's such a yapper ." YapperA yapper is someone who talks a lot, often about unimportant things, and sometimes to the point of being annoying.的定义