Definify.com
Webster 1913 Edition
Nicker
1.
One of the night brawlers of London formerly noted for breaking windows with half-pence.
[Cant]
Arbuthnot.
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.
Webster 1828 Edition
Nicker
NICKER
,Noun.