(Sa'ih) A term of respect; can be roughly translated as sir or madam.
May also be written as "Sei"
Teacher: "Now, I've re-arranged seating to discourage you two from passing each other notes. I can not have either of you doing that during class. Have I made myself clear?"

Student 1: "Sai, of course."
Student 2: "Yes Sai!"
by wax-paper peace-pipe boi May 25, 2010
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Seen in the movie ELEKTRA. Has a central, rounded or octagonal shaped steel blade and can be between 15-19" in length. On either side there are two smaller prongs used as wrist guards. The sai can be used for a number of things such as stabbing, slashing, punching, blocking, and throwing. Very useful against swords. Mainly used in pairs.
"Dude, you flippin destroyed that guy and his sword with your sais!"
"I can also fight off multiple enemies with them too."
"Yea, you kicked his butt! Can I look at them?"
"Get your own, I bought these for only $50.00 at century!"
by TKDmaster January 14, 2006
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Colloquial, in other countries- A lover who has to court in secret, generally female, due to social factors
He and his Sai had no choice but to make passioante love behind the bushes in Cubbon Park
by SuperAwesomeBob June 12, 2011
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a Slang word used to describe a beautiful girl with high IQ and beautiful eyes usually used in a relationship calling your girlfriend
Boyfriend: Hey Sai you look superb today!
Girlfriend: aww thank you, honey <3
by Tychee December 11, 2020
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vulgar, colloquial- An illicit lover
Oh he's got a wife but he's boning a Sai on the side
by SuperAwesomeBob June 12, 2011
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The term "says", originating in South-Western Sydney as an accidental synonym to "days", is considered to be an informal replacement to "days" by the Estonian army whilst at war.
Person 1: "I remember the says when I was 14. Wow."
Person 2: "Yeah, they were the good old says."
by iwrestledyourmumonce July 19, 2010
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Someone you invite to your house, talks casually to your parents, and someone ran 2km for to guide them the direction of your house, but then says your friendship with them isn't genuine, and that you are not worth to entertain
Say is Cheesy
by gagogagohanlng August 29, 2023
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