The term "naked bar" came from one of my female lifters, Julia Ames-Jung. For years when coaching lifters, after they had lifted their top weight I would say, " Strip.
Judges and audience members got more than they bargained for when body builder, Einar rocked up on stage to show off his talents! The weight-lifter.
Naked Weightlifting is NOT about lifting weights without clothing (but I bet you took a second look). The definition of naked is "without extra or embellishment".