Is there an item related to diapers that literally made you weak in the knees?

Plastic pants or as mom called them rubber pants. Mom always seemed to get louder when she told people about my diapers and “ rubber pants ". I would wince and almost drop to the floor when she would talk to her lady friends about how I had rubber pants on over diapers. Just to show her control over me she would remove my pants so all could see my rubber pants.