A sexual fetish that consists of defecating while wearing diapers during an act of sex.
Named for Senator David Vitter from Louisiana. In July 2007, Senator Vitter was exposed as a client of the DC Madame. Later investigations showed that Vitter was also a client of the Canal Street Brothel in New Orleans. Further investigations revealed Vitter's sexual diaper fetish.
As I was about to cum I took a VITTER in my diapers.