Poetic license

My son calls headphones “headmuffs.” I find that hysterical, but if I let him see even a smirk he’d get embarrassed and probably cry, never to utter it again. That’s my current parenting dilemma. Correct him or let him go on with his cute and often-funny neologisms? Seems cruel to let him go on, now that I think of it, but there’s nothing better than hearing about a “hippo-om-a-puss” when you least expect it. I’ll let it go a bit longer …