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si collins

A term used for anyone who goes into the pub at opening time and stays there until it closes.

A: Did you know that Jack’s been in the pub since half 12 and the pub shuts in 20 minutes?
B: Wow, proper si collins him.

by bondy__ April 30, 2024


sister sis

the prettiest gal ever.

sister sis is so cute omg.

by justdoitNike April 2, 2020


SI

Means self insert. The character you use and identify yourself to have sex with your anime waifu.

-I'm going to write a fanfiction between my SI, Jackard Bigchub Maximus, and Sagiri-chan.
+Do it elsewhere. Disgusting.

by FancyDuck December 3, 2018


SI

A shawty or girl

Wtw si🤔

by Urbanblackuser December 14, 2021


si

when one is typing the word "is" really fast and without thinking.

i think he si very nice

by winnie foster November 16, 2017


SI

Short for Survival Instinct - the ability to know what to do to stay alive.

His SI stopped him from committing suicide.

by Reality Unearthed March 24, 2023


si

si deez nutz

person one: how do you say yes in spanish
person two: si-
person one: SI DEEZ NUTS U STOOPID

by nuttynutty January 16, 2022