The Simpsons has used and coined many neologisms for humorous effect, many of which are only used once. The most famous example is Homer Simpson's signature annoyed grunt, "D'oh!". Few of the following made-up words would qualify as neologisms from a strict lexicological perspective due to their extremely limited uses outside of the show. For those that have found their way into regular and common use, the route passes through the considerable fan-base where use of these words carries the prestige of pop-culture literacy among those who catch the references, just as among other cultural groups a clever parallel to a well-known phrase from the literary or rhetorical canon would be acknowledged.