Vore:
"Short for "voraphilia" or "vorarephilia": a fetish in which one fantasizes about being eaten alive or eating another creature alive (sometimes known as phagophilia). The most common type of vore is "soft vore", being swallowed or swallowing whole with no bloodshed. There is also the less common "hard vore" which involves the tearing and chewing of flesh. Other types of vore include macrophilia and microphilia, in which one character involved in the vore is larger or smaller than normal. "

Fun fact: Arachnids digest before they ingest.