1 discharge, emit, squirt, spurt, jet, shoot, gush, erupt, spew (up or out or forth), spit, eject, disgorge, vomit (up or forth), pour (out or forth), flow, stream:
Steam spouts from many vents in Iceland. The water came spouting out of the hose and drenched me.
2 ramble on, rant, rave, carry on, pontificate, orate, declaim, hold forth, maunder (on), witter on, hold forth, expatiate, speechify, talk, Colloq go on, Brit rabbit on:
Harry, as usual, was spouting about his golf handicap.
3 waterspout, gargoyle, downspout, duct, drain, outlet, conduit:
The rainwater drains into the gutters, then into the spouts.
4 up the spout. gone, lost, destroyed, beyond hope or recovery, to be written off or abandoned:
Our dream of finding the treasure was now up the spout.