Ok, just back from Vegas. We were at the airport in Vegas when we met up with a young marine trying to get wasted because his grandfather just died. He came up with a drink on the fly trying to do some damage to me that actually turned out to be very good.
Midori . Southern Comfort, Stoli regular, in that order in equal parts.
After a few people tried it we agreed it tasted like a gummy worm, thus the name is "Gummy worm". Not sure if it has another name. Bar tender sure didn't know about it, nor did a few others.