an autovampire can be a person who bites the inside of their cheek or lip simply out of thirst, or sucks the blood out of thier own wounds
an [autovampire] is a person who enjoys sucking blood, like a vampire, but unlike a vampire, they suck their own blood
"an autovampire can be a person who bites the inside of their cheek or lip simply out of thirst, or sucks the blood out of thier own wounds" What is the definition of "autovampire"?