When it comes to expressing a fervent passion or enthusiasm for something, there are a variety of synonyms for the term "batty about". Some alternatives include "crazy about", "nuts for", "wildly enthusiastic", "madly in love with", "obsessed with", "passionate about", "zealous for", "devoted to", and "fanatical about". Each of these phrases conveys a slightly different connotation, with some emphasizing an intense emotional attachment while others emphasize a more steadfast commitment. Regardless of the specific word choice, however, all of these synonyms describe an unbridled excitement or dedication to something one loves.