"Be wild for" is an idiomatic expression used to describe intense enthusiasm, excitement, or passion for something. There are several synonyms that can be used to convey a similar meaning. Some of these include "crazy about", "obsessed with", "mad about", "fanatical about", "impassioned about", "infatuated with", "devoted to", "enamored by", "zealous for", and "enthusiastic about". Each of these synonyms highlights the intensity of the emotion one feels towards a particular object or activity. Whether it's a hobby, a person, or a cause, having a strong passion for something can bring joy and purpose to one's life.