The Adventures of Rocky and Bullwinkle and Friends
The Adventures of Rocky and Bullwinkle and Friends, also known as Rocky and his Pals, The Rocky and Bullwinkle Show, and The Bullwinkle Show, is a animated variety show created by Jay Ward, Alex Anderson and Bill Scott which aired from November 19, 1959, to June 27, 1964. its main feature was the serialized adventure of best friends Rocket J Squirrel (a flying squirrel) and Bullwinkle the Moose, as they inadventantly finds themselves entangled with plots of Russian spies, Boris Badenov and Natasha Fatale.
2x69 Explosive Situation or Don't Make it Worse, Its Badenov
Part five of the "Rue Britania" arc, Boris tricks Bullwinkle into eating a big bowl of Macedania nuts and then drinking 50 glasses of water, causing him to have a bloated belly and a tummyache. This is of course, part of Boris' plan to do in the moose through preforming surgery that Bullwinkle won't pull through from!
2x70 You've Got me in Stitches or Suture Self
In the recap, we see Bullwinkle bloated with water after drinking fifty glasses of water out of thirst.