These two links offer some evidence that the whiskey was likely iced tea.
http://www.moviemistakes.com/film67/page3 -- read part of the way down the page or do a ctrl-f search for "tea." This is just someones opinion that the liquid foams more than whiskey should have in that circumstance, but its a valid observation. watch for the foam as he finishes the bottle
http://www.foxnews.com/story/0,2933,208172,00.html -- this one is about alcohol abuse and mentions the scene in question. the article's author says that it was iced tea provided by the film's director instead of whiskey. again, just search (ctrl-F) for "tea" on the page once it loads.
here's a link to the actual scene from YouTube -- http://www.youtube.com/watch?v=rnVKkJFYkhg&NR=1
it was john belushi in Animal House
Animal house
how much is an empty 1.5 liter jack Daniels maxwell house bottle worth?
In the movie 'Animal House", John Belushi had a mouthful of mashed potatoes when he pretended to be a zit.
== == http://www.answers.com/topic/animal-house-deltas-jpg his character was called Bluto, short for Blutarski
John Belushi
John Blutarsky. Nickname was Bluto.
animal ark by Lucy Daniels
less than a full bottle... by about 95%... it looks like you'd be lucky to get $25 for it.
Josephus Daniels House was created in 1920.
Frederick Daniels House was created in 1885.
Charles Daniels House was created in 1830.