Nga is a very popular vietnamese name. But it sounds like complete nonsense to someone who does not have a vietnamese accent. Many girls named Nga are quite beautiful but be weary, ask how she pronounces it or she might become offended and curse you in vietnamese.
The denoted symbol for niggatronium, an element with N=500 neutrons and Z=1 proton, known for absorbing all incident light and is responsible for the color black.
A song by Billie Eilish.
White person: That dude over there is more black than anyone I know.
Black person: Ayy yo talking bout me? I’m full of niggatronium (NGA).
Billie Eilish: I made him sign an NGA.