Optimal Drunkenness 

The point during the night when the alcohol level in the bloodstream provides the most buzz with the least chance of discomfort later.

In economic terms: the point at which the marginal product of drinking meets the marginal cost of drinking.

After 7 beers and 3 shots of vodka, I reached optimal drunkeness and partied all night.

Optimal Drunkenness by Chris Cole December 5, 2004