You're thinking of the ".word.word.word" convention for newsgroup names. The last word would be repeated three times. The prototype for this was "alt.swedish.c

You're thinking of the ".word.word.word" convention for newsgroup names. The last word would be repeated three times. The prototype for this was "alt.swedish.chef.bork.bork.bork," though "alt.wesley.crusher.die.die.die" (and the related "alt.ensign.wesley.die.die.die") came soon thereafter. The name of the group you're thinking of was probably something like "alt.dinosaurs.barney.die.die.die."