Improve Accuracy of Robot Mating Sounds made by chatbot

Summary: 99% sure this is a typo and that's supported by the number of google results

Test Plan: http://www.youtube.com/watch?v=zb38Kp9QlOM

Reviewers: chad, #blessed_reviewers

Reviewed By: chad, #blessed_reviewers

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D10710