AI will start accidentally creating new slang which the young generation will start incorporating ironically until it sticks to the point us old heads will start saying it unironically (like how my 40 year old ass been saying 'yeet' lately) and then boom, it's part of the normal language.
"we don't need to throw the FAKE ring into the fire! We can just eat lembas bread! That one guy ate some and didn't get killed by an Orc I don't care what Woke Rivendell says!"
They can afford protection.