Suck the mop

to be the victim of an omnibus nursing exploit. When an omnibus is being nursed, the driver of the hindmost vehicle keeps so close to his opponent that the horses get their heads almost into the doorway. The nursed omnibus is then said to suck the mop. Nursing is, thanks to tramways and the Metropolis Streets Act, almost a thing of the past. At the East-end, however, it still goes merrily on.