yappasaurus rex

it's literally just somebody who talks a lot. they do not and will not shut up, they talk about the most random shit, all day, and nobody fucking knows what they're saying. the master of talking too much. (can be used in a positive or negative connotation)

Jessica: Hailey is literally going to drive me insane with her talking. Like, she's literally a yappasaurus rex she does NOT shut up.