The sexual act of laying underneath a man's anus, firmly grasping his erection, and pulling downwards as if preparing a soft-serve ice creamcone while he proceeds to defecate (poop) directly into the mouth of an ice cream-lover.
"You know Shelby? Yeah, I totally gave her a Dirty Ice Cream Machine last night. She really loves chocolate."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.