The phrase "rarin go" is often used to describe someone or something that is bursting with energy and enthusiasm. If you're looking for synonyms for this phrase, you might consider using words like "fired up," "energized," or "excited." Other options could include "raring to go," "chomping at the bit," or "itching for action." These words all convey a sense of readiness and anticipation, suggesting that the individual in question is eager to dive into whatever task or challenge lies before them. Whether you're cheering on a sports team or rallying your colleagues for a big project, using these synonyms can help you communicate your enthusiasm and motivate others to join your cause.