TBT. Buttercup.

I thought buttercup was just a piece of muffin-like goodie,

then I heard the song "Build Me Up Buttercup' by the Foundation, over and over, in dances and karaoke sessions where people love the 60s and 70s tunes.

But no, buttercup is a kind of plant from the Ranunculacea family which produces yellow or white flowers.

And lately, buttercup became a character in Toy Story, even a princess in the Princess Bride.

But more than this, Buttercup has become a term of endearment by guys to gals, and a fave dance number throughout the years.