Millie Bobby Brown's bizarre bathroom confession has left fans horrified after it resurfaced.
The actress, 22, appeared on Alex Cooper's Call Her Daddy podcast back in March 2025, during which, she spoke about a range of topics including her romance with Jake Bongiovi and Stranger Things.
But at one point during the lengthy sit-down, she made a shocking admission about the unusual way she once relieved herself during a long car ride, and it did not go over well with some social media users.
While chatting with Cooper, Brown revealed she peed in a cup on the side of the highway during a road trip.
She then proceeded to keep the lid for the entire trip, and joked that the whole thing left her husband Bongiovi, 24, unhappy.
During the interview, Brown recalled: 'We were on a road trip and we were in Alabama and it was just me and Jake and our friends.
'I needed a wee so I just hung out of the car and peed in a swamp in the middle of Alabama.
'Our friends were like, "What the hell?" I peed in this cup and I emptied it ... then we kept the lid in the car and we called it the pee lid.
'For the whole trip we were just like, "Don't touch the pee lid."'
The mom-of-one went on to explain that Bongiovi was not too pleased with her decision to pee in a cup and remembered him asking her: 'Millie, you couldn't have done anything [else]? We could have stopped, you could have waited.'
Brown, who was born in England but moved to Orlando, Florida, when she was eight, joked that she was used to using the bathroom in situations like that because of her upbringing.
'I grew up basically peeing in swamps,' she shared. 'On road trips, it's like, if you need to pee go pee on the side of the road. That's what we did [growing up].'
The story went viral this week after it was posted on X, formerly Twitter, by the popular account known as Rixlerr.
'Millie Bobby Brown says she forced her husband to travel with a urine-soaked cup lid in their car because she refuses to use normal public restrooms,' they captioned it.
'Honestly I’ve heard some wild road trip stories but keeping a souvenir lid is a new level of chaotic. Does she really hate gas station bathrooms that much?' one user replied.
'Man she's weird. I get it, got to go when you got to go but to keep it in your car rather than I don't know, getting rid of it is a line crosser,' another agreed.
'Keeping the lid is f**king gross,' announced someone else.
'That’s gross and not normal by any standard. [Peeing] on the side of the road normal, doing it in a cup and keeping it not normal,' read a fourth post.
A fifth said: 'There’s some things that people don’t need to know.'
'This is unhinged,' a different user chimed in, while another penned: '[This] is nasty. Haven’t you heard of a trash can?'
Someone else, however, praised Brown for being 'relatable and unapologetically unfiltered.'
'When you’ve gotta go, you’ve gotta go - love how relatable and unapologetically unfiltered Millie is,' they wrote.
Elsewhere in the interview, Brown dished on her and Bongiovi's wedding. The two tied the knot in May 2024 during an intimate ceremony, which was followed by a big celebration in Italy that September.
'I think I was good. I didn’t stress, I wasn’t stressed,' she reflected. 'I’m a planner [but] I’m not yelling at people, I’m not a bridezilla.
'I will say as much as I did control every factor of it, I enjoyed it. [The wedding was like] lightning in a bottle, the feeling was unmatched.'
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