Chips were long cuts of deep fried potato. In England, they were often covered in vinegar and served with fish.
After Rose Tyler witnessed the destruction of Earth, the Doctor took her back to her own time, where she decided to get some chips. (DW: The End of the World)
The Doctor ordered steak and chips while dining with Blon Fel-Fotch Passameer-Day Slitheen. (DW: Boom Town)
Fish and chips were mentioned by the Doctor as being what Rose would be eating if she left the TARDIS, along with sausages and mash, beans on toast, turkey and nut loaf. (DW: Children in Need Special)
The Doctor bought some chips while on Earth. (NSA: The Feast of the Drowned)
Chips cooked in Krillitane oil were served at Deffry Vale High School as part of the Krillitanes' plan to crack the Skasis Paradigm. (DW: School Reunion)
Eugene Jones ordered two eggs, ham and chips every single day at a certain café. (TW: Random Shoes)
Martha Jones bought some chips for the the Doctor and Jack Harkness while on the run from the Master when he was on Earth (DW: The Sound of Drums) which were noted by Jack to be "good" with the Doctor agreeing "actually they're not bad"
Jack Harkness requested fish and chips while aboard the Valiant. (DW: Last of the Time Lords)
