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7.
a team killer "in halo, cs,ect frist person shooters"
kills team mate's too often...
"a dumb-ass"
invented by red vs blue
killing any team members and or themself.
you killed the whole team, "you team killing fuck tard"
by juutin June 18, 2006
 
1.
Somebody who kills a member of his halo team out of boredom or accidentalities
You shot church you team killing fucktard!
by Yaren September 30, 2004
 
2.
when u kill ur cohorts, team mate, or distraction. AKA, caboose from Red vs. blue
Tucker: You killed Church you team killing fucktard!!!
by gunslingergirlvy_c_e August 09, 2005
 
3.
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!
by Aadon Gondahlvor February 10, 2004
 
4.
1) Someone who demonstrates the qualities of a fucktard (See definition) before, after, or during the action of killing a teammate in an online game.

2) Caboose, from Red vs. Blue
You teamkilling fucktard! You shot your CO!
by Shadowlings Tear January 29, 2005
 
5.
Caboose from Red Vs. Blue. go to www.redvsblue.com
After Caboose shot Church(a teammate), Tucker called him a team killing fucktard
by Taylor March 05, 2005
 
6.
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!
by Super-Ultimate-Ownage-Penguin September 11, 2011