Nautical, to turn round, as a mast or boom about its axis, without removing it from its place.To turn or twist about: often followed by round and used reflexively.To turn about; turn or swing round: often followed by round.n. The turning of a body upon an axis within its figure: as, he gave his chair a slue to the left.n. A variant spelling (also slew, sloo) of dough in its second pronunciation.n. A considerable quantity: as, if you want wood, there's a slue of it on the pavement.