Taking a sequence of hits from a gravity bong(also known as a gb or "tube", hence the name.) This comes from the North Jersey dialect for taking a hit from a gravity bong as "ripping a tube." Therefore, ripping more than one tube in a row is called "surfing the net" because after all, the internet is really just a series of tubes.
A: Hey, are you ripping another? How many is that?
B: This'll be my second.
A: Oh snap, you'll be surfing the net soon.
B: Hold on, I have to log on.
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!