Definition of "gaga" []

• Informal Silly; crazy. (adjective)
• Informal Completely absorbed, infatuated, or excited: They were gaga over the rock group's new album. (adjective)
• Informal Senile; doddering. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "She also seems to have forgotten that since the dawn of time the word gaga has been one of the first discernible phrases to come from a baby's mouth."
• "Shop owner Matt O'Connor said he's prepared to fight: Since the dawn of time the word 'gaga' has been one of the first discernible phrases to come from a baby's mouth."
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