subs. (old).1. A whip; cf., FLOG. GROSE gives the word as cant. Fr., un bouis.
1789. G. PARKER, Lifes Painter, p. 173, s.v.
2. (theatrical).A mop (i.e., a bunch of slips of cloth on a handle) used in the painting room to whisk the charcoal dust from a sketch.