town bike noun a promiscuous female AUSTRALIA,1945 Everybody has, it seems, “taken a ride”.
— Louis S. Leland, APersonalKiwi-YankeeDictionary, p. 105, 1984
A sheila with a reputation as the town bike heard he was there, and went to the house, taking a bottle of cologne with her. — Kel Richards, TheAussieBible, p. 28, 2003