There's a lovely story of a dad who's wife said, "Lil Johhny said a bad word today. Go talk to him." Or something to that effect.

"Johnny, Momma tells me you said X. That's pretty bad, but at least you didn't say the worst word..."

"What's that?" "Can't tell you!" <negotiations> "OK, but you have to PROMISE you'll never say it in front of Momma. It's <whispers> booglashek."

Next day, all his friends were over, calling each other booglasheks.