This is Dr. Seuss' lost tongue twister. Take your time and see if you can read each line aloud without a mistake This is this cat This is is cat This is how cat This is to cat This is keep cat This is a cat This is dumbass cat This is busy cat This is for cat This is forty cat This is seconds cat Now go back and read the THIRD word in each line from the top down and I betcha you can't resist passing it on.