Conversation Assassination 

A comment given precisely to kill a conversation. Usually consists of "oh", "k", "ok", or "ya".

"So you know what I'm excited for?" - Male
"What's that?" - Female
"Football starts Friday!" - Male
"Oh ok." - Female
"Classic conversation assassination." - Male

Conversation Assassination by AwkwardSilenceGuy August 29, 2010

assasinistic 

to be cold, separate from the people around you, yet influential, and can be mostly perceived as dark, as well as misguided.

You assasinistic (insert word)
What an assasinistic way of thinking

assasinistic by Nodnarb Rellim March 13, 2010

fun assasin

1) My wife.
2) Black hole of amusement. (For instance, building a home-made catapult and having fun hurling dog droppings into the yard across the street. This person would instantly make that unfunny and make you stop.)
3) A person so anti-funny that if you mixed humor and this person together, the resulting explosion would rip away Earth's atmosphere and make it an unliveable planet for thousands of years.

"Shit, here she comes. Damn fun assasin. Hide the catapult."

fun assasin by I.Q. 151 December 5, 2004

AFK Assassination 

In a first person shooter, when you go away from keyboard for just a second to do something, and come back to find yourself dead in-game. Common modes of death include being sniped or simply run up to with a melee weapon.

"Dude. You just stood still for a second and a sniper got you."

"Shit! I was just opening a bag of Cheetos!"

"Must've been an AFK Assassination."

AFK Assassination by AlpineWolf April 14, 2010

Popular Assasins

A well known Counterstrike Source team that used private cheats to their advantage during league matches. Unfortunately, only two out of the eight members were convicted of cheating. They no longer compete in any league and its members have since gone in separate directions.

Anon1: Damn, those kids are more blatant than Popular Assassins.

Anon2: Nah dude, Popular Assasins are the most blatant ever.

Popular Assasins by Sebastian9 February 8, 2009

assassinate the toilet 

The act of clogging not only your toilet but toilets within a 5 mile radius.

What happens after you watch Twillight and get violent diarrhea.

man #1: Dude I have to go assassinate the toilet.
man #2: Ill call the plumber.

assassinate the toilet by Reaper118us March 19, 2010

Silent Killing Assassins 

A long-term counter-strike knifing clan. The leader of this clan is Nato Suicidal.

I'm gonna go play in the Silent Killing Assassins clan Server and get pwned by its members.

Silent Killing Assassins by Ub3r 1337 hax0r September 28, 2006