This is the 6289th most frequent French word.
gaga
"Foolishly infatuated, excessively enthusiastic, or mentally weak/senile."
Here, 'gaga' implies a state of emotional captivation or enchantment.
Elle est devenue gaga en regardant ce film émouvant.
She became sentimental while watching this emotional movie.
In this sentence, 'gaga' is used to convey an extreme attachment and admiration towards someone.
Ce grand-père est complètement gaga de ses petits-enfants.
This grandfather is completely infatuated with his grandchildren.
In this context, 'gaga' refers to a state of confusion or mild mental disarray.