A song that everyone loves and sings, but no
one actually knows the lyrics to.
They'll mumble along, or sing
something that sort of sounds like the lyrics. Sometimes they'll actually believe what they invent.
But most of the
time they won't admit they don't really know the lyrics.
Girl 1: In When I Grow Up by The
Pussycat Dolls, are they saying "I wanna have
boobies," or "I wanna have groupies" or what?
Girl 2: Sweetie, no
one knows. That song is such a singalone song!