Green’s Dictionary of Slang

clucker n.2

[the central portion of the far-right Ku Klux Klan (allegely the sound of a firearm being cocked)]

(N.Z. prison) .

[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 44/2: clucker n. an inmate affiliated to a White Power gang, or sympathetic to the White Power movement.