level up

To make a move in your life or career for the better.

When a player of a videogame has earned enough experience points to acquire a new level in a skill or skills. Often is accompanied by the ability to weild new weaponry, access new places, or begin new assignments.

1. To Drink your drank fast
2. To feel the affects of alcohol intoxication

To enhance one's self or another's outward appearance in order to appear more attractive to the desired sex.

Getting even with your friends in terms of the blood alcohol level.

Example:
After some hours of working overtime, you get to your friends on a party. They already had several drinks and thanks to their blood alcohol level, they're having a lot of fun, while you're still sober and therefore not in the same mood as them. To change that, you've got to level your own blood alcohol concentration up.

To practice something regularly and get better and better at it

When you are just a little bit better than everyone else