This word comes from the mix of two separate words; Gook, which is a derogatory word used to describe someone of Southeast or East Asian descent, and Poof, which is a derogatory slang which refers to a homosexual person.
(Imagine a situation where a group of people are playing a drinking game)
Man 1: Everyone who likes chicks drinks
*all men at the party apart from Jameson drink*
Man 2: Hey Jameson, why didn't you drink?
Jameson: Well, because I don't like women.
Man 3 to Man 1: I didn't know Jameson was a goof.
: (verb) to waste time or to act in a ridiculous or silly way.
: (noun) a silly, foolish, or ridiculous person.
it's not a french word, it's instead an inside joke/typo my friend had made. goof is good, good is goof. be a goof. the end.
me:*sends meme with unfunny caption*
penelhoepe: that's goof
penelhoepe:*good
in math class matt gives the wrong answer to an easy question and embarrasses him self, so i would say your a goof