They competed in the 'butterfly'.
swimmers doing the 'butterfly'
a 'social butterfly'
(..) you need to save these things? I'd like to say it's nostalgia, but every time I think of throwing anything away, my ears start to ring, and I get butterflies in my stomach. And then it feels like the butterflies get eaten by rats, and then, the-the rats (..)2016 TvShow: The Big Bang Theory Title: The Solder Excursion Diversion Season: 9 Episode 19