It depends..
for a guy it would be 'Je suis fou'
for a girl it would be 'Je suis folle'
BonGO is french for crazy
Not sure how you spell it, but my buddy (whose family is from New Iberia, La.) said "coo-yahn" means crazy in Cajun.
To say crazy in French, fou,(f-oo)
a crazy person is "un fou, une folle" in French.
crazy is fou (masc.) or folle (fem.) in French. The plural is 'fous / folles'
bizzare but it sounds better if you say it like my friend Corrine with a "crazy insane" French accent
For a book passage, I need to recheck the word for a crazy person in French
You drive me crazy is "tu me rends fou" (masc.) or "tu me rends folle" (fem.) in French.
By how crazy of a act the said "crazy" person or thing does. I wouldn't, I would leave that to a professional.
Yes, you are crazy. And your girlfriend is cheating on you.
Tu as folle!
Fou (crazy)