Flipyap

Flipyap is a Grunt mentioned by another Grunt in a long comment that can only be heard with the IWHBYD skull.

"You killed Flipyap! Or Yapflip, was he... It was Yapflip... No, Flipyap is his brother. Don't tell me I don't know Flipyap! Flipyap and I went to Nipple Academy together! And.... and now he's dead..."

Flipyap and the Nipple Academy are mentioned by Bungie for humorous purposes only.

Trivia

 * The quote can be heard here: "http://www.youtube.com/v/-d7IiiyukTc&rel=1"
 * There is also a chance with the IWHBYD skull on that you can, overhear grunts talking, saying, "Cover me, I'm going in." "I'm not going to cover you, it's your fault Flipyap got killed."
 * He is the brother of Yapflip, according to his friend.
 * On EXTREME RARE OCCASIONS you can hear a few major grunts talking about that after killing a single minor grunt.
 * Flipyap is one of the most popular and well known grunt characters in the halo games.