Originally Posted by it-ogo
The original is bitter but not sarcastic. Sarcasm is a kind of humor, in your line humoristic effect is made by close combination of "cheers" and bitterness. In the original there is no feeling of humor at any point, I am not sure how was that done but that is it. Hmmm... this "I drink for" is like she finally accepted the situation as completely blighted. No blame, no call to justice, no humor. And this is a "final drink" or even "ultimate drink". It is too tragic to be sarcastic if you understand what I mean. :)