Mellow Yellow the album "Donovan's Greatest Hits", the rumour that one could get high from smoking dried banana skins was started by Country Joe McDonald in 1966, and Donovan heard the rumour three weeks before "Mellow Yellow" was released as a single. According to "The Rolling Stone Illustrated Encyclopedia of Rock and Roll", he admitted later the song made reference to a vibrator; an "electrical banana" as mentioned in the lyrics. This definition was re-affirmed in an interview with "NME" magazine: "it's about being cool, laid-back, and also the electrical bananas that were appearing on the scene - which were ladies' vibrators."
The Yellow and Blue the end of a long life, he wrote: "It has always been a great joy to me, revisiting Ann Arbor, to hear the song still sung in fraternity houses, and on the campus in the twilight. I have heard it in mid-ocean, on the streets of Florence and Rome, and hither and yon as I have traveled about the world. A song written in the days of one's youth, if it by good luck expresses the emotion and enthusiasm of succeeding generations of young men and women, is a thousand times more worthwhile than many books of learning." The Yellow