Jellyfisting refers to anal fisting aided by the use of Welch's Concorde Grape Jelly as ass grease. Women love this. Just ask them.
I had a black nigga chick over last night, and after I came in her asshole I started jellyfisting her until she came all over the walls. It was purple.
Steve- Hey babe, look at me!! Im doing the jellycopter!
Jacey- Whats a jellycopter?? (she is turning around to see)
Steve- Oooohhhh!!!
Jacey- Fuck!! You got it in my eye!!!