Plot

The Cutie Mark Crusaders start a gossip column under the name Gabby Gums, but find it might not be worth the pain the stories cause other ponies.

The Cutie Mark Crusaders decide to be in a newspaper club run by Diamond Tiara. They write embarrassing, rude articles about other ponies under the name of Gabby Gums.

Hoping to find a way to get their Cutie Marks, Applebloom, Sweetie Bell, and Scootaloo join the school paper.

This year, Diamond Tiara is the paper's Editor-in-Chief, and demands the girls get her some juicy news. The girls' first attempts are all rejected, but when classmates Snips and Snails end up stuck together with chewing gum, the girls submit their story under the name 'Gabby Gums,' and Diamond Tiara loves it! The story even becomes a popular topic around the school, and Snips and Snails relish the attention (even if the gum removal has left them with a few 'bald patches').

After returning to Rarity's place, Sweetie Bell finds her sister looking in her saddlebag, and laughing at the article. At first upset that her sister was looking at her stuff without permission, Sweetie is surprised when Rarity enjoys the school paper, and asks to show it to her friends.

Diamond Tiara asks for more Gabby Gums-written articles, but the girls are unable to come up with anything. Their solution? Make stuff up. This not only upsets a number of ponies, but Sweetie Bell goes too far, and actually publishes excerpts from her sister's private diary.

Rarity confronts her sister about what she has done, and Sweetie Bell and her friends then go to Diamond Tiara to resign. However, Diamond Tiara blackmails them to continue writing Gabby Gums columns, promising to print incriminating photos of the three.

The girls finally figure out how to get around this, and give Diamond Tiara an article, who sends it to the press without reading it, as the press deadline draws near.

The article is actually a public apology from 'Gabby Gums,' and gives all three of the girls' names , promising the column and false stories will end.

While Ponyville and their friends forgive them, the girl's teacher Cheerilee then strips Diamond Tiara of her position, relegating her to work the printing press instead.