S.I.S.S. 

Sudden Ice Shift Syndrome. An event that sometimes occurs when a person is drinking a beverage containing ice. As a container is tipped up to pour the liquid into the mouth, a mass of ice, formerly lodged near the bottom of the container, shifts under the force of gravity, causing the beverage to spill down the chin of the drinker. This phenominon is not observed when drinking through a straw.

As he mopped the stain on the front of his shirt, the young man who had just tried to pour the last of his long island iced tea into his mouth exclaimed "SISS!" (pronouncing the acronym S.I.S.S.)

S.I.S.S. by Dale Seng November 23, 2006

S.I.S.S. 

Standard Issue Street Soldier

Police, Sheriff or any law enforcement officer

A couple S.I.S.S. chased me over a couple fences.

S.I.S.S. by JAE26 March 28, 2007

natalie and charlie sitting in a tree k-i-s-s-i-n-g

cha cha and Natalie love each other so very much

haha, Natalie and Charlie sitting in a tree k-i-s-s-i-n-g ahahah

natalie and charlie sitting in a tree k-i-s-s-i-n-g by big changes June 20, 2021

N.A.P.W.I.S.S 

Nitpicks

Are

Problems

When

I

Say

So

A term coined by a Youtuber named Bricky, formed in reference to the ludonarrative and disheveled parts of the Uncharted game series and its story. It is an acronym used to refer to nonsensical moments of a form of media that an audience knowingly and willfully ignores, perhaps out of enjoyment of the media, or simply not giving a shit.

See also: suspension of disbelief

Oh wtf?! That makes no sense!

Oh well. N.A.P.W.I.S.S.

N.A.P.W.I.S.S by nobody-773 June 23, 2022

K.I.S.S. 

Keep it simple stupid

Dude, your project is too complicated. Gotta K.I.S.S.

K.I.S.S. by Not /Available December 28, 2008

S.W.I.S.S.  

Salesmen's motivational acronym for "Sell What's In Stock, Stupid".

Boards bearing the logo S.W.I.S.S. can be found in the back rooms of Verizon stores across the U.S.A.

S.W.I.S.S. by Michael Zeleny January 26, 2008

I.S.S. 

A forum where the populace consists of 10-13 year olds. The website is basically a reject version of Niketalk. Users often debate on why their voice are changing, why little coils of hair are growing in private places, acne medication, a detailed step-to-step guide on how to kiss, the "birds and the bees" talk, official what elementary school do you go to post, how to convince parents to buy $300 pair of shoes, and etc.

Here is a compilation of the "characters" on I.S.S.:
1. LatinFusion aka Bobblehead, No Neck, or Emo Spic
2. Shortyrockjayz aka Never Walked , Snorlaxrockjayz, Smelly Fat Pussy, or All My Jordans Never Crease Cuz My Feet Provides The Stuffing (Basically she is fat as shit.)
3. b ! o h a z R D aka AzN fAgGoT.
4. That Spanish girl who wears her glasses to the tip of her nose (Poser)
5. Too many Asian "gangsters" to note. (irocknikes)
6. iCEDOUTNiKZ aka Proactiv/Slim Fast model.

Some popular quotes frequently used on the forum:

1. "THOSE ARE SOME HOT FLINT XIIIS!"
2. "DAMN NICE OUTFITZ! WHERE CAN I COP THE WHOLE THING?"
3. *female posts an image of what she's wearing but the head is not present* "OMFG UR SO FUKIN HOT!"
4. "YEAH I'LL FUCK YOU UP! COME MEET ME AT X TOMORROW" - Scrawny 12 year old.

I use my mommy's grocery money to buy my Jordans. (I.S.S.)

I.S.S. by Nelson C January 2, 2006