Basically the same as nigga only funnier. Like nigga the word "nugga" can be used on anyone, black, white, asian, what have you, it's not necessarily racist.
1. a racial slur, towards black people or middle eastern people(nuggas/terrorists, commonly used amongst white friends and away from blacks and or middle easterns.
1. Crall, your such a sandnugga.
2. Watch out! that sand nugga gonna blow!