Hell-to-the-yeah-yeah
This term is used by flaminhot, ultrahip, fantabulous females typically named Barbara, Janie Lee, Jane, Joyce, Laura, Susan, Melissa, Anna, Kitty, Coraline, Mimi, as verbal consent when a simple yes simply won't do.
person 1: do you wanna get some mac and cheese later?
person 2: HELL TO THE FUCK YEAH person 1: wow, i didn't realize you liked mac and cheese so much.