GP2:  “Mum, what does gullible mean?”

Me (reading the paper and not paying much attention): “Oh, it means you’re easily taken in, you believe anything.  Why?”

GP2 (nonchalantly):  “Well, I heard on the news that it’s not a real word any more so they’re taking it out of the dictionary.”

Me (marginally more alert): “Oh really.  🙄  So how gullible do you think I am?”

He managed to fool his older brother, though.   😆