The act of grabbing an elderly woman's teat and shaking it uncontrollably until rotten milk has been produced and made ready for bottling. Chill and serve.
Guy 1: "I went to visit my grandmother in the nursing home yesterday."
Guy 2: " My grandma passed away there last year."
Guy 1: "Yeah, they were out of soda so I settled on a good ol' Dusty Milk Shake