Mid 19th century; earliest use found in American Whig Review. From the name of Pantagruel + -ic, after French pantagruélique. Compare earlier Pantagruelian.
Definition of Pantagruelic in US English:
Pantagruelic
adjectiveˌpantəɡruːˈɛlɪk
rare
Pantagruelian.
Origin
Mid 19th century; earliest use found in American Whig Review. From the name of Pantagruel + -ic, after French pantagruélique. Compare earlier Pantagruelian.