Bad Wolf meme
"Bad Wolf" was a repeated meme throughout Rose Tyler's travels with the Doctor through space and time, mostly throughout her travels with his ninth incarnation, but partly throughout her travels with his tenth one also.
Timeline
Ninth Doctor's era
Tenth Doctor's era
After the revelation of their significance, Bad Wolf occurrences became less common in the Doctor's and Rose's timestreams, although they still occurred.
In 1879, the Host, a Werewolf, stated that Rose had "something of the wolf about her" (DW: Tooth and Claw). The Torchwood files on Rose had been corrupted by the "Bad Wolf" computer virus (DW: Love & Monsters) and, after the Doctor and Rose had been separated in different universes, the last hole through the Void linking them led into "Dålig Ulv Stranden" - Bad Wolf Bay - in Norway. (DW: Doomsday)
Websites
Many websites also made use of the phrase "Bad Wolf", such as the UNIT website (unit.org.uk), which had "badwolf" as the password to one of its secure areas, and a clip on Mickey Smith's website identified the newsreader who reported the spaceship crash into Big Ben tower as "Mal Loup", French for "Bad Wolf". Micky also described the Doctor on the same site as "making another decision for us, all 'I'm the big bad wolf and it's way past your bedtime.' "
(whoisdoctorwho.co.uk)
On the FAQ of the Geocomtex website the correct sequence of the pins in the first question is morse code for badwolf.
