Team Kill 

Like a Kill, except instead of killing an enemy to get it, you kill a teammate. This is much easier, becasue they don't expect it. You can, for example, walk up to them and Pistol whip them to death. But, once they're onto you, it gets alot harder. And a name like Rampant Teamkiller doesn't exactly help.

Pvt_ryn272 was sitting on the ridge of a hill when Rampant, his teammate, walked up behind him and emptied his mp44 into Pvt_ryn's ass. Rampant was awarded with a team kill, and walked away a much better person.

Team Kill by Rampant Teamkiller July 7, 2004

team kill 

When you and 2 or more team mates gang up on a single enemy player and kill his ass

WOOOOO we just team killed dat bitch!

team kill by Dubiks April 30, 2019

team-kill

1. To end the life of someone who is on your team (usually intentionally).

2. To end the life of multiple people on your team (usually intentionally).

"You team-killing fucktard!"

"This noob always comes in and team-kills all day."

team-kill by IpWn/\/00b5 December 10, 2006

Team-Killing Fucktard 

A Team-Killing Fucktard is commonly encountered in online team-based games, such as Halo (where the term originted).

Normally they are Noobs or Newbs, or just Fucktards in general.

Team-Killing Fucktard can be abbreviated to TKFT. Plural version of the noun is TKFTs. It can also be used as an adjective to describe someone who has killed a team member. There are two definitions of such team-killers,
True Team-Killing Fucktards (TTKFT) and Enraged Team-Killing Fucktards, also known as RageQuit TKFTs (RTKFT or RQTKFT)

Origin:
The origin of the Team-Killing Fucktard originated from popular Halo webseries, Red Vs Blue (RVB) it can also be said that the first recognized TKFT is Caboose from the series, for killing team-captain Church with a tank in the first season. Caboose may not be the first TKFT, but the famous incident has sparked awareness of the dangers that TKFTs present to the online-gaming community and beyond.

You shot Church, you Team-Killing Fucktard!

Team-Killing Fucktard by Super-Ultimate-Ownage-Penguin September 11, 2011

team killing fucktard 

One who kills (either accidentally or purposefully) a member of his or her own team. Someone who should be killed themself. often used after a lasertag game with friends, during a counterstrike or halo game, or any of the other FPS or gun-related team games.

Damnit, you team killing fucktard, Watch where you're shooting!

You fucking killed me, Team Killing Fucktard!

team killing fucktard by Aadon Gondahlvor February 10, 2004

team killing fucktard 

Somebody who kills a member of his halo team out of boredom or accidentalities

You shot church you team killing fucktard!

team killing fucktard by Yaren September 30, 2004

team killing fucktard 

when u kill ur cohorts, team mate, or distraction. AKA, caboose from Red vs. blue

Tucker: You killed Church you team killing fucktard!!!

team killing fucktard by gunslingergirlvy_c_e September 2, 2005