This is short hand, and past tense, for "kill line". A kill line is a function on Internet Relay Chat (IRC) where and administrator 'kills', or disconnects, a user. The "line" is a temporary ban of the user logged in the IRC server deamon.
by morganm October 04, 2006
The act of screwing a fellow co-worker so bad that it leaves a feeling in the anal region described only as "the size of ones forearm up to the the elbow."
I got kline'd when he left the 5/8 12' off of the ticket and now the customer is calling complaining.
by dwbird February 03, 2015