Paul F. Boller Jr., in Presidential Anecdotes (1981), relays the following story about Cleveland’s campaign for district attorney of Erie County, NY in 1870:
“[Cleveland] and his friendly opponent, Lyman K. Bass, agreed to drink only four glasses of beer daily. But after they had met a few times on warm summer evenings to talk things over, they decided that their ration was too skimpy and so began to ‘anticipate’ their future supply. A few evenings later, Bass suddenly exclaimed: ‘Grover, do you know we have anticipated the whole campaign?’ Cleveland nodded sorrowfully. The next night, however, both of them brought huge tankards to the saloon, christened them ‘glasses,’ and had no problem with the ration after that.”
Thanks to Dead Presidents Daily for the tip.