dub up

verb2

1. •
   (slang) To put someone in prison, or into their individual cell.
2. •
   (slang, old-fashioned) To give up money; to give in to demands for money; pay up.

   • […] he said he had given Ryan two £5 notes to keep for him, and that if he didn't dub it up he would go down for the police; he never told me that Ryan had robbed him till Wednesday. — 1889