The lyrics to Fats Domino's song "The Fat Man" are a celebration of his larger-than-life persona. He is proudly referred to as "the fat man" due to his weight of two hundred pounds. However, he proclaims that despite his size, all the girls love him because he knows his way around. He flaunts his sexual prowess and sings about watching the "creole gals" on the corner of Rampart and Canal. The chorus, consisting of various combinations of "wah wah wah" and "wah wah waah," helps to emphasize the playful and carefree nature of the song.

Aside from its surface-level interpretation as a fun and jovial tune about self-confidence, "The Fat Man" holds deeper cultural significance. Domino, a black man, was able to break through the oppressive racial barriers of the 1950s and become one of the first black artists to achieve mainstream success. Songs like "The Fat Man" were instrumental in connecting different cultures and communities and spreading the joy of rock and roll across the country. The lyrics may seem simple on the surface, but they carry weight as a symbol of cultural exchange and breaking down the walls of segregation.