pterodactyl
When a male/female takes the pterodactyl position, which is butt out, head forward, arms to the side, and proceeds to give double handjobs, a blowjob, receive either anal or vaginal sex (in the case of a woman), all while screeching like a pterodactyl.
"Hey John and Bill, we are one member short of pterodactyling the shit out of that bitch."