fantasize

verb

1. (British, English, Oxford, US, intransitive)To indulge in fantasy; to imagine things only possible in fantasy.

   “I fantasized about my ideal date.”

2. (British, English, Oxford, US, intransitive, transitive)To portray in the mind, using fantasy.

   “Not that Mom and I didn't have our "shared experiences" — it's just that I'd like to forget most of them. I'd rather fantasize us together in that little cafe.”

   “Actress Dana Delany fantasizes about making love with two men.”