TimSemantic satiation - a psychological phenomenon in which repetition causes a word or phrase to temporarily lose meaning for the listener, who then perceives the speech as repeated meaningless sounds.
dodom@philmcclure I remember hating books in 1st grade because child lit authors at some point decided that writing a whole story using the same 20 words over and over would somehow be easier to read than normal sentences, and I was so over forgetting what "with" meant.