D defs.my
Entry 2 senses Webster, 1913

Nicker

· Nick·er · IPA /ˈnɪkə(ɹ)/
01 n. One of the night brawlers of London formerly noted for breaking windows with half-pence.
  1. 1.
    One of the night brawlers of London formerly noted for breaking windows with half-pence.[Cant]
  2. 2.
    The cutting lip which projects downward at the edge of a boring bit and cuts a circular groove in the wood to limit the size of the hole that is bored.