What does "spout" mean?

Additional senses

1. 2.To pawn; to pledge; as, spout a watch. [Cant]
2. 3.To issue with with violence, or in a jet, as a liquid through a narrow orifice, or from a spout; as, water spouts from a hole; blood spouts from an artery. All the glittering hill Is bright with spouting rills. Thomson.
3. 4.To eject water or liquid in a jet.
4. 5.To utter a speech, especially in a pompous manner.
5. 6.That through which anything spouts; a discharging lip, pipe, or orifice; a tube, pipe, or conductor of any kind through which a liquid is poured, or by which it is conveyed in a stream from one place to another; as, the spout of a teapot; a spout for conducting water from the roof of a building. Addison. "A conduit with three issuing spouts." Shak. In whales . . . an ejection thereof [water] is contrived by a fistula, or spout, at the head. Sir T. Browne. From silver spouts the grateful liquors glide. Pope.
6. 7.A trough for conducting grain, flour, etc., into a receptacle.
7. 8.A discharge or jet of water or other liquid, esp. when rising in a column; also, a waterspout. To put, shove, or pop, up the spout, to pawn or pledge at a pawnbroker's; -- in allusion to the spout up which the pawnbroker sent the ticketed articles. [Cant]