A correction angle that is factored into one's beer pong shot due to extensive intoxication.
The size and placement of the angle is completely dependent on the level of intoxication of the shooter. It is also an acquired skill that develops over time and is usually non-existent in those that suck at beer pong and/or drinking.
Note that this is similar to the concept of crosswind correction, an airplane piloting technique referring to the correction needed for a crosswind present during landing.
"Wow, Darren has been drinking heavily all day and he's still hitting cups like a champion. He really has great drunk correction."
"Dammit Matt, either start putting in some drunk correction or I'm finding a new partner. I'm carrying this team, asshole."