Big things are happening on TV Tropes! New admins, new designs, fewer ads, mobile versions, beta testing opportunities, thematic discovery engine, fun trope tools and toys, and much more - Learn how to help here and discuss here.
Everything Gertrude goes through trying to get the clover back to Horton, despite not being able to hear Who herself.
Horton finally loses his temper when on trial. "I meant what I said and I said what I meant/ An Elephant's faithful one hundred percent/ You can throw me in jail, lock me up in a zoo/ But I won't desert my egg and I will not abandon Who!" Also qualifies as a "Hell Yes" Moment.