a nigger who resembles a rat either by rat like actions, or just simply looking like a rat.
Oh shit bro, did you check out that sick ass nigrat?
ayon kay Brigham Lee ika-01 ng Pebrero, 2006
A combination of a black person and a rat. "Nigrat" refers to a poor black person that is homeless.
I gave that black nigrat some change on the street.
ayon kay cornman6969 ika-22 ng Disyembre, 2009
A person who thinks they're top notch walking around like their shit dont stank, well it do and they're often borrowing money and slumming it down, nigrats cannot be trusted
Frank is such a nigrat, he just asked me for twenty last week and he wants thirty today! He never pays me back!
ayon kay donniedead ika-15 ng Pebrero, 2015