This is deriving sexual pleasure from insects crawling on the body, specifically on the genitals. It is more common in developing countries, perhaps because homes are infested with insects. This could lead to an individual's genitals being exposed to insects (especially if they have outdoor bathrooms, as many developing countries do), and if this happens at a young age when they are sexually developing, they may derive pleasure from it.
Perhaps liking one of your stuffed animals a little too much as a child can lead to this fetish. It is being sexually attracted to stuffed animals or people dressed in animal costumes. Some plushophiles like to masturbate using small stuffed animals, and some like to dress up in costumes and have sex with others wearing costumes. Someone who is into bestiality, but doesn't want to actually have sex with animals could also enjoy this fetish.
This is arousal by the thought of being eaten by someone, eating someone else, or watching someone eat somebody else. It is called "vore" for short. Perhaps this is related to cannibalism, but how someone develops a fetish like this, I really could not even speculate upon. It involves pure fantasy (at least hopefully it does), since it would be very difficult to make any of the aforementioned situations reality.
This fetish can vary in what the inflatophile enjoys. It can be an attraction to inflatable animals and toys, deriving sexual pleasure from wearing inflatable suits, or just being aroused from the thought of people inflating like balloons. Perhaps an inflatophile could enjoy the company of a blow-up doll a little too much. This is another fetish that any psychologist would probably have a hard time explaining.
This is a dangerous practice wherein a person enjoys cutting off their air supply while having sex or masturbating. Those who practice this fetish claim that it makes orgasms more enjoyable, but sometimes they can't get the rope, belt, or seatbelt that they use to strangle themselves loose fast enough, so it can be deadly.
This is a fantasy that involves the thought of having sex with a robot, having sex dressed as robots, or having sex with a person who is transformed into a robot. I'm sure that there are many geeks out there who fantasize about having sex with a perfect android woman, but this fetish can also involve fantasizing about having sex with a non-humanoid robot. I guess someone who really loves technology or science fiction could be into this.
This is a Japanese term for a panty fetish. It is an extremely prevalent fetish in Japan. There are burusera shops in Japan that sell used schoolgirls' panties, and there even used to be vending machines on the streets where men could buy them. The men buy them to smell them. Since laws have been passed forbidding this practice with girls under the age of eighteen, young girls have still profited off of the practice by letting men pay them to simply sniff their panties under their skirts while they are wearing them. I have no idea why this has become so popular in Japan. Maybe they really enjoy their fish there? (Sorry, horrible joke.)
This is simply the breastfeeding of an adult by a lactating woman for sexual arousal. Nipple stimulation during sex is widely practiced, but erotic lactation is much more taboo. Perhaps it gives the male in the relationship a sense of security (or maybe he just gets curious about what breast milk tastes like and decides he likes it). It's a bit strange that nipple stimulation is a turn-on for women when their main purpose is for feeding babies, but I guess evolution has some reason for it.
This is deriving sexual pleasure from receiving an enema. It's not too surprising that people can get aroused from it, especially if they enjoy Doh'mains sex. A klismaphile may also enjoy pornographic films that portray someone receiving an enema and deriving sexual pleasure from it.
This is often known as the Bonnie and Clyde Syndrome. It is a sexual attraction to someone who has committed a gruesome crime. Many inmates who are imprisoned for outrageous crimes receive love letters from women. It's a very odd phenomenon. I guess the average bad boy isn't enough for women who are hybristophiles.
It's amazing what our minds can cause us to derive sexual pleasure out of. We may not understand why we are attracted to certain things, but there is usually an underlying cause that gets imbedded in the brain at some point at time (usually as a child) that leads to these fetishes and paraphilias. Just be careful on which ones you act upon and be aware that some fetishes may hurt and disturb others.