A girl who acts as a surrogate sex partner shared by an anonymous group such as a town or province.
A girl who fucks so many men that she approaches the annual statistics of a public service like water or garbage utilities.
The sexual equivalent of a public urinal
Guy 1: Shelly is a tandem town bike cause i heard she is letting people go 2 or 3 at a time now.
Guy 2: Sheesh!, That broad has seen more dick than a stadium urinal.
A female who gets ridden by all comers (cummers). The word "comers" is a double entendre also meaning "cummers" - semen ejaculators.
A female who pedals (peddles) her ass around town or who is pedalled (peddled) around town. The word "pedal" is a double entendre also meaning "peddle" - to sell.
Almost everyone has ridden the/that Town Bike. The Town Bike is a joy ride. The Town Bike is pedalled (peddled) all over town.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)