I'm not being of Anglo-Saxon origin, I do not know the usual little phrases in the video game, especially TESO, to taunt(gentially) the other players in English or in German.
By "taunt" you mean to "mock", like to make a bit fun of someone in a situation?
If so, what situations do you think of?
I'm not aware there are any "standard" sentences or words within video games, or especially TESO, for this. UnrealTournament got some sounds for it but it is a shooter ;-)
I only know of typically abbreviations like
afk Away from keyboard
etc.