The former First Lady also dished on her celebrity text buddies, how her and Barack are boring now they're unemployed, and whether her daughters, Sasha and Malia, would run for President one day.
The former First Lady, during her time in the White House, had to be careful about what she said.
"Just curious, just wondering if somebody rubbed you the wrong way", Kimmel said. Now that she's no longer First Lady, however, she can say whatever the heck she wants, and unleashed all the things she's been keeping under wraps for all those years in a hilarious "JKL!" bit.More news: Three Palestinians dead after Israel air strikes hit Gaza
Obama: "I've never eaten a vegetable". Have you ever heard anything more shocking?
She added, "For every bit of awe we felt in Kenya, we were also exhausted, which led to quibbling, which led finally, for whatever reason, to rage". "Laura, sorry. Send me the bill", she added. The only one that seems to hold any truth is, "I'm not sure which one's Sasha and which one's Malia".
A passage in the book reads, "If I were to start a file on things nobody tells you about until you're right in the thick of them, it is miscarriages".
Many families, who have struggled with childlessness or delayed parenthood are likely to identify with Mrs Obama's story and her eventual triumph. "They agree!" as she revealed that "they go so mad every time I mix their names up" when it comes to her 17 and 20-year-old daughters.