i noticed the same catch a tic phenominon...heheh..correct my spelling ok moi? on a tv show that had ts kids at a camp.
maybe it's kid thing. they pick up other kids speak patterns and habits very fast. we know moi is a kid at heart.
i have to add, my husband picks up new slang type words fast too. so does lil'monkey. i make sure i never say yadda yadda. lil'monkey said it so much that grandmonkey still calls her yaddie.