Music Zach Galifianakis Visits ‘Sesame Street’ to Learn About the Word ‘Nimble’ Apr 18, 2015 Facebook Twitter Pinterest WhatsApp Linkedin ReddIt Email Print Today Murray recites the nursery rhyme, “Zach Be Nimble.” Do you know what nimble means? To be nimble is to be quick and light. Watch Zach Galifianakis demonstrate nimble as he jumps quickly and lightly over a candlestick.