Green’s Dictionary of Slang

nugger n.

[nugget n. (6) + nigger n.1 (1)]

(US) an African American quadriplegic.

[US]J. Stahl Happy Mutant Baby Pills 206: I was the only one who didn’t know what a ‘nugger’ was. ‘Slang for amputee [...] If you happen to live in a hobo camp’.