Someone who spends time in a 'cardio' room, doing either elliptical, crosstrainer, or treadmill machines with no intensity, and ultimately make no progress. The worst offenders subsequently down a high-calorie beverage, completely negating their workout.
Jane: "Yeah, I hit the gym. I spend a half hour on a crosstrainer."
John: "Don't be a cardiobunny, put some intensity into your workout!"
John: "Don't be a cardiobunny, put some intensity into your workout!"
by Timmy™ March 10, 2007