sic 

used to enhance the expression when one is talking about hard tricks that look cool on a skateboard/BMX/snowboard (all board sports)

That Was a sic kickflip

sic by skateordie May 7, 2003

SIC 

Stare Into Camera. Inspired by the character April Ludgate on the TV Show Parks & Recreation. In the show, April would often stare into the camera as a nonverbal aside with the audience to convey palpable awkwardness in a conversation.

Molly: Did you just fart?
Greg: SIC

SIC by Marc Zuckerburger March 27, 2011

SiC 

A crew founded on street art in the 864
now getting famous by their SiC t-shirts and sticker slaping

SIC864 IS ON THE RISE

SiC by TNK#1 August 25, 2009

SIC 

Sleeping In Class. It has nothing to do with a High School that sounds just like a college but It's totally not.

Give me one word to describe Duc
He is SIC(k)

SIC by Lam da Lame Lamb November 30, 2019

Sic 

I am not a Queer

"hey you look like my friend Caleb." replies "Sic"

Sic by Barj McRage March 6, 2020

Sic 

Something so good...not a person but an event

Concert was Sic

Sic by ChkM8 Chaz March 4, 2022

SIC 

Standard Issue Cat (as per Reddit) is a brown mackerel tabby.

Last night an SIC came to my door and wanted some food.

SIC by TheWeaverofDreams August 18, 2022