Homuhomu

Homuhomu (ほむほむ) is Homura's fan-based Verbal Tic, adopted in nearly any situations. Because it's a shortening of her nickname and makes her look a bit cuter. If you happen to go to Pixiv, it's practically omnipresent.

Fanon
Hilda Adams' M-mail address is "'HomuHomu@M-Mail.com".