A word created by Kamio Misuzu (female protagonist of Key's adventure game AIR), supposedly to immitate the sound that dinosoars make but comes closer to imitating the sound of a baby chick. May or may not induce a smack on the head by Yukito (male protagonist of Key's adventure game AIR). She normally says it when she's upset, confused, or generally in trouble. If you ever run into someone who uses this word as part of their common speech in real life, it is best to give them a quick thwap on the head as soon as possible.
Misuzu: Let's play cards!
Yukito: No.
Misuzu: Gao~
Yukito: 321THWAP!
Misuzu: My head... Gao~
Yukito: 321THWAP!
Misuzu: My head... Gao~

You get the idea.
by lostotaku January 6, 2005
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Sound a nidoran-m makes
Gao gao!
(Feed me!)
by Evil Tim September 14, 2003
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traditionally a Japanese onomatopoeia used as a growl like for lions, tigers, bears, dinosaurs.

Used in the H-Game/Anime series Air by the main female character as an expression of discontent, like when shot down on an idea, or hurting herself.

see also: 'uguu'
Misuzu: *trips falls flat on face*
Misuzu: "G..Gao...."
by Kunisaki Yukito February 11, 2005
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Actually, 'Gao gao!' means 'lavish attention upon me!'. 'Feed me!' is 'Gaaaaaaaaaaooooooooooooo!' and 'rape me' is 'Gao gao gao gao Gaaaaaaooooooo' (with the butt in the air)
by pupli October 9, 2003
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derogatory term for any woman who is a liar and a schemer
"She told me she was pregnant so we would get married...She wasn't!"

"Sucks man...What a gao gao!!
by drakelikescake August 8, 2009
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In Cuba, or by Cuban people, a word used as a synonym for "house", of course, usually by the youth.
Vamos pa' el gao (Let's go to the house)
by FlowChulo18 July 5, 2017
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