gaga
/ˈgɑːgɑː/adjective
- informal slightly mad, typically as a result of old age, infatuation, or excessive enthusiasm〈非正式〉（尤指因年迈、迷恋或过分热心而）疯疯癫癫的, 糊涂的。
词源
early 20th cent.: from French, 'senile, a senile person', reduplication based on gâteux, variant of gâteur, hospital slang in the sense 'bed-wetter'.