Anyone who has seen the recent movie: Personal Shopper starring Kristin Stewart knows what astral projectile vomiting means from that ghost who shows up and throws up at her recently departed twin brother's house while she's waiting for him to make contact.
(BTW: I did not spoil the movie anymore than IMDB did with their synopsis, and everyone else did too in their reviews that I read before I had ever even seen it for the first time.)
