A fictional fat boy with round spectacles in Charles Hamilton's stories set at Greyfriars School
Actually he wasn't too bad except he had a green army style hat on, which made him look completely ridiculous; a bit like Billy Bunter in the army.
the main character in children's stories by Frank Richards about life in an English public school (=a private school where the students live as well as study) . Bunter loves eating and is always getting into trouble