also chippie, "promiscuous young woman; prostitute," 1880, U.S. slang, perhaps an extended sense of chippy (1864), short for chipping-bird "sparrow," which is perhaps ultimately a variant of cheep.
Entries linking to chippy
cheep v.
"to peep, chirp," 1510s, of imitative origin, originally Scottish. Related: Cheeped; cheeping; cheeper. The noun is attested by 1774.