One Piece Season 2 Episode 72

Usopp, who is immensely impressed with the giants’ fight, decides to strive to be like them and starts calling Broggy his master. After their fight, which, like thousands before it, ends in a draw, Dorry receives two barrels of booze from Broggy, which he obtained from Nami and Usopp. Unbeknown to the four, the contents of one of the barrels is made to explode by Mr. 5. When Dorry later drinks it and it badly injures him from within, he accuses the Straw Hats. Left with no choice, Luffy fights the weakened giant and knocks him out. However, by the time of the next eruption of the center volcano, Dorry gets back up and heads into battle, knowing his chances to be bad.