nicker /ˈnɪkə(ɹ)/noun 9verb 3forms 3 noun9 •(UK, slang) Pound sterling.This coat cost me 50 nicker. •A soft neighing sound characteristic of a horse. •(informal) Someone who nicks (steals) something, a thief.He […] was far more interested in the fact that I was a car thief and an expert driver than that I was a bandit. […] Car nicker, are you? — 1934 •(vulgar, offensive) nigger. •A snigger or suppressed laugh. •A type of mythological sea creature or sea monster; also, a water sprite; a nix or nixie; a mermaid or merman.And in another tale, told at Kemnitz of the Nicker, as he is there called, when he asks the midwife how much he owes her, she answers that she will take no more from him than from other people. — 1891 •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. •Hippopotamus. •(slang, no longer used) One of the night brawlers of London formerly noted for breaking windows with halfpence.your modern musicians want art to defend their windows from common nickers — 1713 verb3 •To make a soft neighing sound characteristic of a horse.After a few minutes, the mare walked over and nickered loudly in his ear, and he immediately got to his feet and stripped the gear from the waiting horse. — 2012 •To produce a snigger or suppressed laugh. •(UK, informal) To snatch or steal. formsnickered · nickering · nickers