text-killer 

Phrases and words such as "lol yeah" and "haha ok" that are guaranteed to kill any text conversation.

"r u coming 2 the prty 2nite?"
"no i cant cuz i hav 2 go 2 a family reunion"
"haha ok"
"way to use a text-killer... now wat do i say?"

text-killer by happyfish May 30, 2009

textkiller 

The final text, usually a one word reply, used to designate the end of the conversation. Unless you have a desperate texter on the other end.

Dude, rachael doesn't know how to take the textkiller and stop talking!

textkiller by Erbodygettintipsy December 17, 2008