Flutune

flutune ['floo-toon] (n.) A stucksong passed to another person's brain by its mention or imitation.
"Dude! You mentioned the flutune Don't Worry, Be Happy and now I can't get it out of my head."

(v.) flutune, flutuned, flutuning
The act of passing along a stucksong or flutoon, usually with malicious intent.
"That wicked woman is flutuning the whole class by whistling Tainted Love."

Stucksong

stucksong ['stək-sôNG] (n.) Any song, or melody or tune playing on a loop inside one's mind. See also flutune.
"My stucksong this morning was Little Bunny Foo Foo."