phrasal
1. : to exert maximum force or energy : move or cause to move at top speed or intensity
didn't run at top speed for much more than a furlong, but when he did he must have poured it on — G.F.T.Ryall
allied bombers … began really to pour it on — Alfred Friendly
companies … taking it relatively easy on production may now be tempted to pour it on — J.D.Williams
2. : to give unstinted expression to an idea or attitude
gave them a ten-minute talk in which he “really poured it on ” — New York Herald Tribune