No. That Kilgore Trout book was Venus on the Half-shell written by philip José Farmer under permission of Vonnegut
I always thought that Vonnegut wrote that. It was a kind of unforgettable read. A sort of run of the mill fair to middling science fiction work, which is exactly how Trout was described, a somewhat failed Sci Fi writer. Probably the best thing about it was the lurid picture on the cover....
In the book the main character traveled throughout the universe, he observed that intelligent creatures everywhere solved their problems with alcohol and sex.
As I recall pretty funny.