American Dictionary

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Definition gaga in American English

gaga adjective

adjective
/ˈɡɑˌɡɑ/
1

not thinking clearly because you have very strong feelings of love for someone or because you are very enthusiastic or excited about something

Example

Teenage girls have gone gaga over the band's lead singer.

Synonyms and related words
2

no longer able to think clearly because you are getting very old

Synonyms and related words
Definition gaga in American English