The phrase "be dying for something/to do something" is often used to express a strong desire or yearning for something. However, there are many synonyms that can be used in place of this popular phrase. Some of these include "craving," "longing," "yearning," "aching," "pining," and "hankering." Additionally, you could use "desperately wanting," "eagerly awaiting," "itching to," or "aching for." Depending on the context, there are a variety of words that can be used to convey the intense feeling of wanting something or wanting to do something. So, next time you're feeling an overwhelming desire for something, try using one of these synonyms to switch up your vocabulary!