Ellie Goulding's badass workouts [1] aren't for sissies. From running to yoga to crazy-hard strength-training workouts, we totally look to her for inspiration. The singer recently posted these Instagram videos of her boxing workouts, with a comment to her trainer, "Ain't no DNB." For those wondering exactly what a DNB is, it's a term Rhonda Rousey coined [2] that means "do-nothing b*tch," which she says is a "chick that just tries to be pretty and be taken care of by somebody else." Based on these workouts, we're sure that Ronda would agree that Ellie is definitely not a DNB.