Some American parents are freaking out that their child–the one they were turning back-flips over when pee-wee said his or her first words--now sound like they’re from the UK. But why?

Jezebel states, “It’s the “Peppa Effect,” in which children who are most certainly not from the United Kingdom have begun to mimic the voice of Peppa, Britain’s most famous piglet.

“Parents are now posting Peppa anecdotes using the hashtag #PeppaEffect, claiming that their children regularly lapse into using British terminology or speaking in faux English accents a la Madonna. One news anchor from a Cleveland based NBC affiliate said that her daughter recently called gasoline “petrol.” Petrol!”