Many first-person shooter games have teleporters. Telefragging was afaik invented in DOOM, where if you teleport into space already occupied by a monster or player, you take over that space, fragging the monster or player.
In the final map of Quake, the way to kill the boss is to enter a teleporter when the other end of that teleporter enters the boss, thereby telefragging it.
A TVO children's show geared towards teaching French but in fact shows the effects of Stockholm syndrome, LSD and the not-so-innocent wiles of a local homeless man and his pet pineapple.
Someone who has an affinity for exploring telephone services and technology; telephony technofile; essentially a phone "hacker" otherwise known as a phreak or phreaker. Also see telephreak.org.