local. [Cf. TUBBAL, TWIBILL.] A tool used in Cornish mines: = BEELE2.
1671. Phil. Trans., VI. 2104. The Instruments commonly used in Mines, that serve for ripping the Loads . A Beele or Cornish Tubber (i. e. double points) of 8 l. or 10 l. weight, sharped at both ends, well steeled and holed in the middle.
1753. Chambers, Cycl. Supp., Tubber-Men are the people who work with this tool, called in other places beel-men.