(n.) The writer of a lampoon.

banana burlesquer caricaturist clown comedian comic cutup epigrammatist funnyman gag writer gagman gagster humorist ironist jester joker jokesmith jokester lampoonist madcap parodist pasquinader poison-pen writer prankster punner punster quipster reparteeist satirist wag wagwit wisecracker wit witling zany