when a white boy wants to call a black person a 'nigger' but is afraid he'll get an asswhopin' if he does. So he changes the word ever so slightly to form the word 'nukkah'
shut up nukkah
fuck yo couch nukkah
yo nukkah, you gotdee weeed bro?
naaaah playa, i know you didn' jus' give that nukkah our weeed.