Collins Dictionary has officially declared the word ‘brat’ as the word of the year. Many phrases popularised by social media are now popping up in the dictionary, but how fluent are you in Gen Z and Gen Alpha slang?Collins Dictionary has officially declared the word ‘brat’ as the word of the year. Many phrases popularised by social media are now popping up in the dictionary, but how fluent are you in Gen Z and Gen Alpha slang?