The Wimpy Bar (sometimes referred to as Wimpys) was an American-style restaurant on High Street in Shoreditch that served hamburgers. The name came from a character in the cartoon Popeye. As Susan Foreman described it:
When the Cold began their attack on humanity on 2 April 1963, Susan, Gillian Roberts, John Brent, Malcolm, Zack, Dolly, a policeman, Henry Haigh and his wife all took cover in the Wimpy Bar. They lived on hamburger buns with ketchup, frozen burgers being the next option.
When the snow storm did not let up, Susan, Gillian and John left for 76 Totter's Lane, where they hoped the First Doctor might help them. Zack, Dolly and Malcom came with them. (PROSE: Time and Relative)