A mixture of feeling pissy, horny, and disappointed, usually caused by expecting a fun night with a hot fuck and it falls through.
Girl: I'm so horny I wish we had a dick to ride instead of just us two.
Other girl: I know a guy to call! He can help us out ;)
Guy on phone: Can't do it tonight. Are you mad at me?
Girl:...I can't think of a word to describe how I feel. I'm pissy and I'm horny and I'm disappointed you won't come. I'm pornappointed.