haven't heard of this one until now...

Vorarephilia
Vorarephilia (often misspelled voreaphilia or voraphilia because of their similar pronunciation), also known as phagophilia or simply called vore[1] for short, is a fetish and paraphilia where arousal occurs from the idea of being eaten, eating another, or watching this process.[2][3] The fantasy may include digestion.[3] The word vorarephilia is derived from the Latin vorare (to 'swallow' or 'devour') and Ancient Greek φιλία (philia, 'love').