buck n.2
an unlicensed cab-driver; orig. use seems to be as v.
Freeman’s Jrnl 21 Sept. 1/5: I drives a cab, that is, I ‘bucks’ for the regular drivers ven they goes for to take a snooze for an hour or so. | ||
Vocabulum 15: buck A hack-driver. | ||
(con. 1840s–50s) London Labour and London Poor III 352/2: The bucks are unlicensed cabdrivers. | ||
Sl. Dict. | ||
Sl. and Its Analogues. |