TARDIS is the MK 1 Type 40 Gallifreyan TT Capsule which owns the Doctor, an overweight, underpowered museum piece...(the ship not him...there again there was that sixth incarnation) he might as well try to fly a second hand gas stove.

His granddaughter came up with the moniker from the initials Time And Relative Dimension In Space (well she was 15 and weak ankled but that's no excuse for such a rotten acronym).

Back home The Doctor has become a bit of a cause celebre/scandalous embarrassment to the effect that the made up word has now become a slang term for all TT capsules.

Hardly anyone back on Gally has even seen the outside of one let alone the inside or travelled in one.

I've had a few and naturally they all worked perfectly well though I've had a number of unfortunate mishaps and set backs so I'm currently stuck in this Chateaux in Falkirk.

SIDRATs are to TT capsules what biros are to laser point nibs (a sort of disposable automatic space/time truck).

I sold a few to some Warlords it was a messy business but I managed to keep my name out of the papers by using one of my amusing sock accounts and regenerating when nobody was looking.