Judy Blume 
Blubber [EPUB ebook] 

Blubber is a good name for her, the note from Caroline said about Linda. Jill crumpled it up and left it on the corner of her school desk. She didnt want to think about Linda or her dumb report on whales just then. Jill wanted to think about Halloween. But Robby grabbed the note and before Linda stopped talking it had gone halfway around the room. There was something about Linda that made a lot of kids in her fifth-grade class want to see how far they could gobut nobody, Jill least of all, expected the fun to end where it did.