Michelle Obama poked fun at the Trumps last night when Jimmy Fallon asked what she was thinking when she left Capitol Hill on her last day as the First Lady.

Fallon showed her a picture of her and Barack boarding Air Force One after Donald Trump's inauguration in January 2017.

He said: 'This is you, this is after the Trump inauguration just waving from Air Force One. Can you just walk me through what...

'Bye Felicia,' Obama blurted out, drawing rapturous applause and whooping from the audience of NBC's Tonight Show Starring Jimmy Fallon.

The phrase is used to say goodbye to someone you dislike or don't care about.

Michelle Obama pulled a face when discussing the moment Melania Trump awkwardly gave her a gift at Donald Trump's inauguration

Michelle Obama poked fun at the Trumps last night when Jimmy Fallon asked what was she was thinking when she left the White House for the last time (pictured is that moment in 2017)

Melania had given her a Tiffany's box (pictured is the moment in 2017) containing a 'beautiful frame' - which she received in front of the cameras, pulling a face indicating it had caught her off guard

Also on the show, she pulled a face when discussing the moment Melania Trump awkwardly gave her a gift at the inauguration.

Melania had given her a Tiffany's box containing a 'lovely frame' - which she received in front of the cameras, pulling a face indicating it had caught her off guard.

After a few seconds of not knowing what to do with the gift, Barack took it from her and gave it to a member of staff.

Describing her final moments as the First Lady, Obama said: 'A lot was going on that day.

'Right before that my daughters' friends decided they needed a sleepover for the last day. I was like: "are you guys kidding me?" '

Describing her final moments as the First Lady, Obama said to Fallon: 'A lot was going on that day.'

Referring to Melania's gift, she added: 'So, there was that and then there was the Tiffany's box. 'It was just a lot.'

She said she told them: 'We're leaving, you've got to take all your stuff, pick up the blankets and the bears,' adding, 'and they were all crying and I was just like "get out, we've got to go".'

Referring to Melania's gift, she added: 'So, there was that and then there was the Tiffany's box. 'It was just a lot.'

Also in the show, Obama pulled a prank on unsuspecting tourists in New York, teaming up with Fallon to surprise them on an elevator.

The stunt, which Fallon has pulled once before with Paul McCartney, involved the late night host and former first lady waiting on a random floor of NBC's headquarters in 30 Rockefeller Plaza as an elevator with a tour group stopped and opened its doors.

In one gag, the pair were sitting and reading each other's books, dropping them down to reveal their faces to the screams of the tour group.

Fallon surprised one group of tourists on the elevator before holding up a red blanket

When he dropped the blanket, they were shocked to see Michelle Obama before them

In another, scene, Fallon opened a giant Christmas present to reveal Michelle Obama, who looked chic in a leather jacket, black blouse, and black 3x1 jeans

In another, Fallon opened a giant Christmas box to reveal Obama - who looked chic in black leather jacket, black blouse, and black 3x1 jeans - waiting inside, delighting the tourists.

In one particularly odd scene, the elevator doors opened to reveal Obama skipping rope.

Later in the show, Obama sat down with Fallon for an interview to promote her new book, Becoming.

Early in the interview, Obama revealed the poor impression that her future husband made the first time they met, when he was working for her at a law firm in Chicago.

'He wasn't good with time until we got married,' she said. 'He was late. The first time. First day of work, his first job, dude was late. I was like, triflin', brother.'

Obama also explained her husband's motivation for seeking a second term in the presidency.

Later in the show, Michelle Obama gave a wide-ranging interview to Fallon

She said her husband only sought a second term to get Secret Service protection for their teen daughters. Barack Obama is seen with daughters Malia and Sasha above in 2014

'The second term of the presidency was really fueled by Barack's desire to keep them with their agents into their teen years,' she joked. 'He was like, we've got to win, because I don't want those girls walking around. He wanted men with guns with them.'

In one memorable moment in the interview, Obama said that her thoughts upon leaving the White House for the last time were 'Bye, Felicia'.

'A lot was going on that day,' added Obama, explaining that her daughters had insisted on a final sleepover with friends on the last day of her husband's presidency.

'And then there was the Tiffany's box,' she said, referring to the gift that Melania Trump gave her, causing momentary awkwardness as she wasn't sure what to do with it. 'It was a lot.'

Asked by Fallon whether she remained optimistic about the country, she responded: 'I am.'

'We owe young people that optimism, that hope, because what's the alternative?' … They come into this world with so much promise and openness; we're the ones that shut them down.

'They need to know their story can be my story,' Obama continued. 'If you live like I did – a little working-class kid who made her way up to becoming First Lady of the United States, a best-selling author, traveling the world – there is reason for hope,' she said.

'There are dark days in so many of our journeys, but we have to push that arc toward hope. That is what I try to do every day.'

Obama explained that writing a memoir is part of the First Lady 'assignment'.

'It's a great story!' Fallon gushed. 'You came from basically nothing, and became the First Lady of the United States!'

'Go figure,' she responded modestly.

Obama said that she could have written an entirely other book focused on her time in the White House, but that it would have been 800 pages, and taken her husband 800 days to read.