The intentional consumption of a large amount of water at once, meant to hydrate for one to several days, as opposed to drinking sporadically. It is often accompanied by a snakemeal.
It can also be triggered by a long period of dehydration.
See also: snakemeal
"Hold on, guys. I gotta cameldrink before this hike!"
"I don't have time to refill my water bottle during the day, so I cameldrink in the morning."
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!