There are between nine and 21 human senses, depending on who's counting. Besides the main five senses, most experts also include...
Fufu (variants of the name include foofoo, fufuo, foufou) is a staple food, common in many countries in Africa. It is often made with cassava and green Plantain Flour. Other flours, such as semolina, maize flour or mashed plantains may take the place of cassava flour. Fufu is often served with groundnut soup, palm nut soup or light soup. Fufu is a national dish of Ghana.
The crux of the issue here is that a waifu is imagination personified. By definition, she is how you fantasize her, and this thought is aided in taking form through a personality set forth in the original source material she came from. The healthy man knows he is imagining his waifu, and accepts this.