During language acquisition a child can learn 20 words a day. What would happen if the parent decided to lie to the child during this time so that whenever the child said "what that?" the parent made up a random word.
Would this permanently stay in the child's mind forever? Or would the child just learn the "real" word from everyday speech?
As an aside, for years I thought the word "modest" meant the opposite of what it means. Because it is only ever said sarcastically. As in "wow, your sooooo modest!" And that's just one word.