si Definition| Urban Word Dictionary

si

Short for "System International." Also known as the Metric System.

si

by Tsugaru on Nov 27, 2003 15:26:32

Its a model of faster model of the Honda Civic, meaning "Sport Injection"

Example:
My civic DX got spanked by that Si hatck.
or
Im bout to get me some Si rimz dawg.

si

by Phileas on May 20, 2008 22:41:29

Abbr. Simple Simon. Individual renowned for extreme stupidity and slowness of mind.

Example:
"Jog on you si - you're as thick as pigshit" or "he's a proper si that one, thicker than a King Edward yoghurt"

si

by sandrashine on Jun 21, 2018 07:49:15

synthetic intelligence.

Artificial intelligence derived from synthetic materialism.

Example:
SI is the only path to achieve artificial intelligence.

si

by kezza on Jan 31, 2005 11:14:35

derogatory term for man who thinks hes a fox.

Example:
si, you isnt a fox dude!

si

by Nicholson L. on May 06, 2006 11:19:40

Abriviation for suck it, normally used on MMORPG's to make fun of the loser.

Example:
Oh, man! Did you just see that head shot? Bet you didnt see that coming loser! SI n00b! Better luck next time!

si

by shiftkis on May 16, 2003 16:41:28

VERY sweet, cute, attractive, thoughtful, smart, funny young woman found in and around the London area. Keep your eyes peeled but dont touch, she's already claimed ;)

Example:
Just think of someone that fits the description above - there's only one person you can think of!

Si-Si

by fomachu on Dec 16, 2018 12:45:44

She says she doesn't see it, but I think people that don't even know her can see it from a mile away. She has a great smile that can make your day, and she seems to always have a smile to spare. She is very nice and caring and doesn't judge you. She is very cute and has a lot of little things that she does that can make you smile or laugh. She is very smart and always knows the right things to say. She is fun to hang out with and talk to. She is a very amazing person for so many reasons. She says she doesn't see it, but she should. She is a good singer too. Si-Si is perfect in every way and I am so glad that I get to call her my friend.

Example:
What song is this Si-Si?
What are you talking about this is one of your favorite songs!

si si si si no no no no

by Error...'uwu' on Dec 13, 2022 19:47:49

sleep paralysis, possessed

Example:
John wakes up in bed cant moves and sees a figure then goes: si si si si no no no no

sis-sis

by Thekidwhoisakidthatgoestomps on Jan 26, 2011 07:53:26

A best friend that you can call sis-sis instead of sis. Female version of brobro. Guys can have a best friend that is a girl that you can call sis-sis and nothing is going on or no one is going out.. Normally if you are best friends you can treat her like a real sister. You can love her like a real sister say I love you like you say to a real sister. Basically best friends.

Example:
Jason: Wow Chelsea, we have been friends for years now and I proud to call you my sis-sis.

Chelsea: Thanks Jason! Can I call you brobro?

Jason: Sure sis-sis.

Chelsea: Love ya brobro.

Jason: Love ya sis-sis.

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