No, you should never poop in a washing machine or any other household appliance. Washing machines are designed exclusively for cleaning clothes and other fabrics. Introducing non-laundry items, especially human waste, can damage the machine, create a hygiene hazard, and cause serious health issues.
If you have a need to dispose of human waste, please use the appropriate facilities, such as a toilet. Proper sanitation and hygiene practices are essential to maintain a healthy living environment and prevent the spread of diseases.