Si Robertson

Si Robertson is tied for the 2nd most powerful being in existence with Shaggy, and #1 being Gucci Berry. Si Robertson can create anything from anything. He can make a Barrett .50 cal out of 3 sticks,a couple of rubber band, a piece of gum, and some shrapnel. He also gets most of his power from his beard and his special ancient tea that he makes himself.

That man is a true Si Robertson.

by Somoki January 26, 2019

Hui Si

She is smart, pretty and talented. She doesn’t always dress up but when she does she make sure she makes an entrance. She can party and love dancing! She is a strong and independent woman. She doesn’t let anything bring her down. She will always protect her close friend and make sure nobody hurt them.

That Hui si is so cool! I wish I was like her

by Sabrinalollitop January 4, 2018

si grand

A word to describe a person who is cool, attractive or superior, often in regards to the size of their penis.

The word bears grammatical genders as described in the rhyme below:

If you are an homme,
Then you say Si Grand,
If you go by she,
Then you're Si Grandi,
If it's not just you,
You're all Si Grandu.

Ryan doesn't skip leg day; he's really si grand. Me and him are si grandu.

by TotallyDefinitelyNotJames July 1, 2023

lil sis

she was getting it installed on her car

yeeeaaaaaaaah, i got it on my car

by Kelly Stewart April 21, 2005

Big Si

Reserved only for the saltiest of sea-dogs, the thiccest of gamers with all the hatred for minorities and none of the gamer fuel. He is a character known for gunning the monster energy drink and snorting creatine so he can get level 99 WC in RS3 (not even OSRS). He will offer you the monster energy drink when he first arrives, but will ALWAYS drink it all himself. He is the kind to stay up all night to complete their school assignment but end up jacking off 6 times exclusively to reruns of the first American Pie.

Wow did that guy just buy himself a negev? What a Big Si.

by ><><><><>< October 4, 2020

Tea Sis

The prime source of tea spilling; the person you go to for all that boiling hot tea

“Hey do you know why mark and erica broke up?”

“Ask the tea sis”

by flapdoodle September 16, 2018

That ain't it sis

It's not fantastic. Not good, but close to good
For example someone stole BTS's beat for a song, and you say

Nah that ain't it sis.

by Jimin is a cutie fight me January 1, 2019