I am a figment of your imagination, therefore you are non-existent.
A loud, profane reply to someone who thinks they’re the main character of your life.
'I am a figment of your imagination, therefore you are non-existent.', shouted at a kid who thought they were the king of the lunch table.
Used in a tweet after someone bragged about their imaginary friend on TikTok.
Sent in a group chat to shut down a kid who kept pretending they had a dragon for a pet.