An insuffulated combination of snuff (snortable smokeless tobacco) and Oxycontin. Derived from SN (snuff) + OC (oxycontin) + snort = snorties. Associated with the same pleasurable feeling of smoking a cigarette while using Opioids. Originally popularized in the Philadelphia medical college underground scene.
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!