Definition of pump something up in English:

pump something up

phrasal verb

informal
  • Turn up the volume of music.

    • ‘He never even steps into the mela but instead parks his motor at the entrance and pumps the music up loud.’
    • ‘Got home, put the disk in the real stereo, pumped it up as high as it would go, and I listened to the last movement four times in a row, just to wait for the moment when That Melody rolled out.’
    • ‘Yet somehow the movie does have fans, and, bless them, at least they can pump the music up with this release.’
    • ‘Seems that the music is pumped up so loudly in the mix than it drowns out everything, and since this is a movie where people speak way too softly, lots of dialogue and double crossing plot machinations are missed.’