People who continuously stalk cloth diaper b/s/t pages looking for people selling their used poop catchers. Most often done by people who don't actually need another diaper.
The act of vultching describes somebody trying to flirt with or feel up someone else without really hiding what they are trying to do.Someone who vultches is often trying to get with a vulnerable or lonely girl who they see as easy prey.
Example 1:
James: "Kaaaassssers!!! I love you Kassseeerrrss!!!!