SAI 

Short for a computer painting software called "Paint tool Sai" or "Easy Paint tool Sai". It is known for also being simple to use for those learning how to draw on the computer.

"SAI is MS Paint and PS if they had sex."

guy1: "What program do you use for your drawings?"
guy2: "I use SAI."

SAI by TTM123654789 February 14, 2012

Sai 

the gender neutral version of sir or ma’am

(pronounced sigh)

non-binary costumer- i’ll have the salad please

waiter- right a way sai

Sai by Jewish bob the builder April 16, 2021

sai 

A Naruto Shippuuden character.
Has no feelings at all.
Looks kindda gay but is not.
Draws & makes those drawings come to life & battle.
A replacement of Sasuke.
Is an Anbu in the division Root.
Loves to do fake smiles (the only expression he knows).

Sai is so hot! He got nice abs!!

sai by Ms. Fluffy Butt March 31, 2008

Sai 

Also known as Eloisa, is a female that has looks beyond comprehension. Some people defines her as a princes, some as an angel, but for someone as his everything. A very enchanted person that inspires all that is around her - a perfect example of a modern woman.

Sai is the best thing that ever happened to me.
Sai! I love you very much!

Sai by yellow bird spoon February 8, 2009

Sai 

(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!"

Sai by wax-paper peace-pipe boi May 25, 2010

sai 

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!"

sai by TKDmaster January 15, 2006

Sai 

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

Sai by SuperAwesomeBob December 10, 2011