a Beatles song that was written by Lennon, party about Yoko, and the idea came from a gun magazine with the caption "Happiness is a warm gun in your hand." Great song, period.
A paraphrase of a Charles Schulz quote. One his Peanuts was hugging Snoopy and the dialogue bubble above them said, "Happiness is a warm puppy." The paraphrase refers to the soothing feeling and pure joy one receives when he listens to his cat's purr, knowing that the cat is happy and his experiencing the bond between cat and owner.
A song in the Beatles' White album written by John Lennon. The phrase "happiness is a warm gun" is a metaphor for "happiness is getting laid." Like a gun is warm after firing it, happiness in this song is compared to having had satisfying sexual activity.