One that enjoys the consumption and effects of grandiose amounts of alcohol, but still leads a successful, functional, and happy life, and does not exhibit the dependant characteristics of an alcoholic.
Cecile can outdrink all her friends, and loves the taste of alcohol. She is frequently found partying her ass off while wasted, but knows when to stay sober and get down to business. She is an alcophiliac.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.