interjection. Barfy cubed. Uh, what's one more than cubed? I am not a mathematician. I am not an animal!
Related terms: gak, double gak, triple gak.
Real citation: "About the seal feces - quadruple gak! I had to take a cat to the vet this a.m., and he crapped in his carrier - twice - on the way there. How on earth could you eat ****?"
(Darcie, Nov. 20, 2006, http://www.americastestkitchen.com/ibb/posts.aspx?postID=176772&postRepeater1-p=3)
Made-up citation: "I haven't been so moved as to say 'quadruple gak' in recent days. I've been living gak-free, thanks to Mister Jesus."