Definition of dipes:
(n) :
(informal, uncommon) Clipping of diaper. [(chiefly Canada, US, Philippines, India) An absorbent garment worn around the crotch that retains the wearer's urine and feces, often worn by a baby or young child who is not yet toilet trained, or by an adult who is incontinent or wets the bed, or under extreme working conditions without access to a toilet; a nappy.]