the new type of plastic rubber that feels exactly like human skin, especially the soft flesh of the genitals, used to make realistic sex toys
"I felt the sexflesh on that new realistic penis vibrator, man. It felt weird. Just like the skin on my own dick. It was freaky."
"What were you doing feeling up a realistic penis?"
"No no, man. You know that's not me. It's just they cut a hole in the package so you could touch it to see how realistic that new sexflesh feels. I just had to check it out."