The phrase "grab free spirit" can be interpreted in a number of ways, depending on the context and intent. Some synonyms for "grab" that might be more fitting in certain situations include seize, pluck, snatch, take hold of, or grasp. As for "free spirit," there are numerous words and phrases that could capture the same idea, such as nonconformist, bohemian, maverick, creative spirit, or independent thinker. Depending on what qualities you're trying to convey with this phrase, there are many different words and combinations of words that could encapsulate the desired message.