Definition - What does Nostril Strap mean?
A nostril strap is a piece of equipment used in BDSM to humiliate and torment the submissive. It is alternately referred to as nose hook. It is popularly used in Japanese sado-masochism scenes. It is made up of two hooks. One end is attached to the nostrils. The other end is attached around the head via a strap.
Kinkly explains Nostril Strap
A nostril strap is often used to get a submissive person to bend their head backwards. This can be an uncomfortable and unnatural position. It is important to be aware of the submissive's level of comfort, and have a safe word in place. A nostril strap can be an exciting addition to any BDSM equipment collection as long as it's used safely.