Choking is something that your mother warned you against when you were a child. That context generally referred to food or other objects (sometimes LEGOs), being stuck inside the throat or nasal passageway.
This version of choking is caused by your match using their hands to block the passage of air via your neck. Though different from childhood hazards, the effects are similar. In your case, the reduced airflow can provide heightened sensations. Sign up to Waves to find safe and willing partners to choke or to be choked from! You can also always filter it out if it makes you uncomfortable.