When a guy is standing up straight and his partner puts her/his arm through the guys legs and gives him a hand job, reenacting the appearance/action of an elephant's trunk. Elephant noises are optional.
Adam: Dude, she finally gave me an elephant wrap around last night!
Nic: Was it uncomfortable?
Adam: Once she got the right grip it was awesome!
Dan: Did she make noises?
Adam: I wish!
Jcon: I gave her lessons!