subs. phr. (colloquial).Laborious work.See AGAINST COLLAR.
1883. Daily Telegraph, July 3, p. 2, col. 1. The bald patches on their shoulders testified to their intimate acquaintance with COLLAR WORK and tugging on stoney roads with heavy loads behind them.
1888. T. A. TROLLOPE, What I Remember, xxvii. And when Lucca was reached there were still fourteen miles, nearly all COLLAR WORK, between that and the baths.