pitch up verb3 •(informal) To arrive; to turn up.It has realised the hard way that it is not enough just to pitch up at a by-election with a loud hailer and some media-friendly stunts, it requires months, even years, of groundwork in the local area. — 2013 •To bowl (a delivery) on a fuller length. •To raise the pitch of (a sound). formspitched up · pitching up · pitches up