Someone who is "All Talk". Someone who builds him or herself up with a bunch of talk, but can never back up anything he or she says.
Shes so yao yao. Everytime she says "lets go out" but then backs out last minute.
by 808_Slanger January 13, 2015
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This super hot chinese girl in Taiwanese commercials with a high annoying voice.
Dude, you see that yao yao commercial where she bent over?
by limdog June 27, 2010
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a legendary emperor of China who, with his successor (Shun), was a paragon of good government.
Yo Ima let you finish, but Yao was the great emperor of all time.
by Lathrim August 21, 2013
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'Tony Yao is a very poor rap artist'

'I got pure yao if your buying'
by razmania August 29, 2008
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A Chinese emperor from ancient China. He started his life in a class, where he was known for dealing drugs to his classmates, teaching him the ways of business and drug dealing. He was extremely disorganized and tends to loose his drugs to his main rival, soon to grow up to General Khoo Yee Zhen, but he started as a drug dealer like Emperor Yao
"Long live Emperor Yao!"

Yao: *smokes a joint*
What?
by BoredM8 December 05, 2018
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1. An acronym for "You Are Onto Something".

2. An acronym for "You Are On Something".
Lisa: I have just made the greatest dip and would now like to start an enterprise making great dips.
Ben: YAOS
by _en September 03, 2013
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