Definition - What does Claustrophilia mean?
Claustrophilia is a sexual fetish which involves the sexual arousal by or interest in being confined in small spaces. This fetish hinges on an unusual desire to be enclosed and cramped into a tight area. Claustrophilia is the counter fetish to claustrophobia.
Kinkly explains Claustrophilia
An individual that has a claustrophilia fetish experiences an unusual sexual desire to be enclosed or confined in a small space. The fetishist often finds the closeness or tightness sexually arousing. The fetishist may receive sexual gratification from lying inside a coffin, or by wearing a straight jacket. Depending on how intense the fetish is, sexual gratification may be achieved through simply wearing restrictive clothing, or, in more extreme cases, being physically placed into a confined space.