oahr
when someone says something, and you answer with the same thing, but with more words and a British accent, like you're trying to outsmart them.
'I just got a new phone.' 'Oh, really? I just got a new phone that can also take pictures of my cat.'
'This is the best movie ever.' 'Oh, really? I saw that movie with a group of celebrities.'
'I'm the best at this game.' 'Oh, really? I'm the best at this game and I've won seven gold medals.'