-gibberish or non-linear speech
-racing and/or delusional thought
-visual and auditory delerium (seeing/hearing things that aren't there)
-throwing chairs and other large objects
-rolling around on the floor yelling about reptiles
-attempting suicide at the end of Jefferson Airplane songs
The term gonzo come from the works of a writer Hunter S. Thompson, who became famous for taking excessive amounts of drugs at some of the most important historical events of the twentieth century, and still having time to write up the newspaper report. He called this gonzo journalism, which is what the gonzo effect is derived from.