Grog

Grog is the man that can be found in Kakariko village at night underneath the tree as you walk into the village. He is a bit grumpy in Ocarina of Time but in Majora's Mask he has a completely different meaning. He is the owner of the Cucco shack, I believe in Romani Ranch and loves his chicks, but when he hears the rumor that the moon will fall to Termina in three days, he is filled with sorrow as he understands he won't see his chicks develop into chickens. Sad when you think about it. It seems in OoT we don’t see much of the character at all, he seems a lonesome child sitting under a tree under the shinning moon and shrouded in the blackness of the night. In MM however we see him as a fonder of Cuccos very similar to the Cucco Lady from OoT is it not?

In common day usage, Grog is slang for alcoholic drink, booze. The staple beverage Monkey Island series.