A jello dessert (usually made with green jello) that has fruit, marshmellows, or any other various treats in it. "Hobos" is used in the title because of the various foods hobos obtain from the public. This dessert is very popular in and derived from Yolo County of Northern California.
Dude, I was chillin at Evie's last night and everyone had hobos greenjohnson.
When you are having sex with a girl doggy style and promptly punch her anus with a ring pop whilst still having sex.
"Yea I really caught my girlfriend by surprise last night after the movies. I hit her with a green lantern and she had no idea what to do" aka The Green Lantern