G-Funk
Short for 'Ghetto' or 'Gangsta' Funk. It's also a type of meth. The 'G' stands for 'glass'.
My friend: 'G-Funk is meth, it's the drug of the 90s.'
My mom: 'G-Funk is like glass, it breaks your brain.'
My brother: 'G-Funk is my favorite drug, it's like a smooth hit.'