The First Lady amusingly revealed that her better half would often ask her to repeat her wardrobe, making her wish he'd stay away from her closet.
"He doesn't understand fashion," the New York Times quoted her as saying in an interview.
"He's always asking: 'Is that new? I haven't seen that before.' It's like, Why don't you mind your own business? Solve world hunger. Get out of my closet," she added.
Mimicking him, she continued: "You didn't need any more shoes. The shoes you had on yesterday were fine. Why can't you just wear that for the rest of the presidency?"
The mum-of two further jested about her own mother Marian Robinson, who she claims forced her and her brother to have their veggies when they were younger.
She added: "My mother, who is now a grandmother - and that's a whole 'nother person - seems to believe that she never, ever really made us eat anything that we didn't want to eat.
"It's just a lie. I'll get my brother here, and we can spend hours railing about how we hid lima beans in our napkins. And for the days we had to eat liver, we were gagging over it."
Dubbing her mum as the classic grandmother, Michelle said: "She thinks Malia and Sasha should have dessert every day, three times a day.
"When I remind her that the girls had ice cream after school, she says, 'Why can't they have pie now?' I'm like, 'Who are you? What did you do with my mother?' "