Food devoid of GMO's, pesticides, herbicides, fungicides, antibiotics, and other drugs; sometimes also devoid of animal products, especially non-organic animal products.
I am on a clean food diet and detoxing.
Bro #1: "Dude, that skinless chicken breast and broccoli looks pretty bland and boring."
Bro #2: "I gotta eat clean food."
Bro #1: "Cool, glad you washed it."