"For the love of mike" is a phrase that is often used to express frustration or disbelief. However, there are many synonyms that can be used instead. Some common alternatives include "goodness gracious," "oh my goodness," "holy cow," and "for Pete's sake." Each of these phrases conveys a similar sentiment of incredulity or annoyance without using the same tired expression. Other more colorful options might include "holy sh*t," "what the hell," or "you gotta be kidding me." Whatever the exact wording, the important thing is to find a way to express your emotions clearly and effectively.