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1. Drinking to fulfill the responsibility of finishing your beer, and 2. making sure that no beer goes unfinished.

More precisely, what to tell someone who may be about to violate his/her responsibility, at which point said person should probably finish their beer.
1.
Drunk guy: (Looks at his partially finished beer) Time for me to drink responsibly! (Finishes beer)
Bystander: Good man.

2.
Person 1: Man, I think I'm about done for tonight.
Person 2: (Points at half-full beer) No way, you need to drink responsibly.
by David March 24, 2008
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