Used in informal settings among friends, not in formal situations or professional documents. At the reunion, everyone seemed to get crocked and reminisce about old times.
Pro Tip 2/3
Negative Connotation
Implies excessive drinking, often more than just being slightly drunk. He's been crocked every night this week; it's starting to worry his friends.
Pro Tip 3/3
Avoid Overuse
While descriptive, overusing 'crocked' can be viewed as insensitive if someone has a drinking problem. I realize he's often crocked, but we should be careful how we talk about it.