TOFU, MOFU and BOFU are acronyms that describe the stages of the sales funnel, which is a model of how customers move from awareness to purchase. TOFU stands for top of the funnel, where customers are looking for information about their problem or need. MOFU stands for middle of the funnel, where customers are comparing different solutions and providers. BOFU stands for bottom of the funnel, where customers are ready to make a decision and buy.