IWIWT
Acronym for I wish I was there. Typically used when a friend recounts a good time or excellent adventure during which, for whatever reason, you were unavailable.
Daisy: And then they both took off my top and each one started going to work on me, right in the middle of the bar. It was crazy. I had never had so much fun in my life.
Roger: IWIWT.
Roger: IWIWT.