Sentence:  "... We do but as the world does; and a girl in our society accepts the best party which offers itself, just as Miss Chummey, when entreated by two young gentlemen of the order of costermongers, inclines to the one who rides from market on a <WSD>moke</WSD>, rather than to the gentleman who sells his greens from a handbasket." 
Meaning of the word marked with <WSD> tags:  A donkey.