wearing his collar to sleep was uncomfortable, but it reminded john all of the time that his mistress loved and owned him, and he felt safe
besides the common definition, a bdsm symbol of attachment of a submissive to a dominant through collar made of metal, leather, or other material
"wearing his collar to sleep was uncomfortable, but it reminded john all of the time that his mistress loved and owned him, and he felt safe" What is the definition of "collar"?