This strip is, specifically, a take-off of Book 1, Satire IV, in which a fish is discovered that's too large to cut apart or cook with any conventional means. It ends up being presented as a gift to the Emperor, who hopefully isn't allergic. You know what they said when they couldn't cook the giant fish? "You're gonna need a bigger grill."
Thank you, thank you I'll be here all night.
Author: Juvenal • Year: Late-1st Century AD • Info:Wikipedia