Ah say cah-wuohw, Mom

I haven't the slightest idea what Egan is telling me when he says this, but it is such a common phrase that I hear it at least twice a day. It is used by him looking squarely at me, brow raised, eyes wide, "Ah say cah-wuohw, Mom." Most of what Egan has to share with me ends in Mom.

Last night I opted to earnestly respond, "What is that?"

Emphatic and an octave higher, "Ah say cah-wuuuoooooooohhww, Mom."

"Really?" I question.

Eyes this close to rolling, then shutting, he looks away, "Yes."