One Beer Asshole

An extremely mean and lightweight drinker.

Fuck! He's been here 10 minutes and already Jason's tried to hit on my girlfriend, punch me in the mouth, and screw my dog in the bathroom. What a one beer asshole!

Just One Beer

The act of drinking at least 6 beers.

For example "Let's go go for Just One Beer" - Random Czech Girl before getting wasted.

I went to Tae's Birthday for just one beer. I ended up drinking a whole keg.