(1) A jabberjaw is someone who never shuts up.
(2) A person who talks too much,
to the point of ad nauseum.
(3) It is also a 30 minute cartoon created in the 1970s by Hanna Barbera. It used to be part of the
Saturday morning cartoons. It was created with a format and writing that was similar to that of
Scooby-Doo and Josie and the Pussycats.