When it comes to synonyms for the phrase "whip and spur," there are a number of options to choose from. Some of the most commonly used synonyms include words and phrases like urge, compel, hasten, press, rush, and drive. Other options might include terms like propel, force, impel, mobilize, or incite, each of which carries a slightly different connotation depending on the context in which it is used. Ultimately, the use of synonyms for the phrase "whip and spur" can help writers and speakers add nuance, depth, and variety to their language, and can make their writing or speaking more engaging and impactful.