In a
BDSM context, a
collar is a device of any material worn by a person around the neck to indicate their
submissive or
slave status in a BDSM relationship. A person wearing a collar to symbolize their relationship with another is said to be
collared. Some people conduct formal "collaring ceremonies," which are regarded as effectively solemnizing their relationship in a similar way as a
marriage ceremony and the collar having similar significance as a
wedding ring. The standard form of a collar is a black
leather band around the neck, often with metal
D-rings added to allow the attachment of a
leash, rope or other restraints; but to be more discreet in public, some people may wear an ordinary
choker or jewelry
necklace for the same symbolic purpose.