"Get your hands dirty" is a common idiom used to describe actively participating in a task or project, usually one that involves physical labor or challenging work. However, there are several synonyms that can be used to convey the same meaning. For instance, "roll up your sleeves," "dig in," "pitch in," or "get stuck in" are all expressions that suggest a willingness to work hard and collaborate with others. Similarly, "take the plunge," "dive in," or "jump in with both feet" all suggest a willingness to take risks and get involved as deeply as possible. All of these expressions convey a sense of initiative, enthusiasm, and hard work, illustrating the importance of actively engaging in one's work or tasks.