One toddler is most likely on the naughty list now after he dropped the F-bomb on video.
Gemma Maxey was filming her two-year-old son as she told him Santa would be coming to his house.
His reaction: "What the f***?"
Safe to say little Leo wasn't the best impressed by the idea of Santa coming down the chimney.
His mum, while shocked, couldn't help but laugh, all the while making sure he knew that wasn't a very nice word to use.
Even more hilarious was the fact Leo was agreeing with her, saying it had been naughty.
Watch it below: