Japanese bondage is actually much more popular through the years. The formal training is referred to as kinbaku which means that to ‘bind tight.’ One other term you might know about is shibari which merely means ‘to bind.’ You might begin to see the terms utilized interchangeably however the term “shibari” is usually useful for any sort of rope bondage, no matter its function. Shibari is solely visual while kinbaku is erotic.