The phrase "eating machine" refers to someone or something that is constantly and voraciously consuming food. It suggests that the person or object has a seemingly insatiable appetite for eating. Full definition
Please do not reproduce any content on The Lean Clean Eating Machine without my prior written consent. (theleancleaneatingmachine.com)
I thought it would be beneficial to compose a break down of the foods required of guinea pigs and rabbits for the overall health of these fuzzy little eating machines! (thatpetblog.com)
I'm so so happy that berries are really starting to get good again by us — I'm a berry eating machine already and it's not even peak season! (spoonfulofflavor.com)