dying beaver

Little Johnny was taking a shower with his grandma.

He casually asked,"Grandma whats that?" She quickly replied, "That's my beaver". Little Johnny didnt say another word.

Two days later he was taking a shower with his mom. Little Johnny asked,"Mommy whats that?" She replied, "Well Johnny thats my beaver."

Little Johnny thought for a bit and said,"Well grandmas beaver must be dying her tongues hanging out!!"