giraffe unicycle

Because giraffes are generally tall and slim.

giraffe unicycle (plural giraffe unicycles)

1. A very tall unicycle.
   • 1976 September, “Coming Up in Boys' Life for October”, in Boys' Life, volume 66, number 9, page 82:

     Gino Farfan is a wizard on the flying trapeze, and Barry Lappy does amazing tricks on a "giraffe" unicycle that's taller than he is.

   • 2004, Lars Clausen, One Wheel, Many Spokes: USA by Unicycle, Straight Into Gay America, →ISBN, page 149:

     Before dark we pull down the five-foot giraffe unicycle and put KariAnna up on it.

   • 2007, Scott McCredie, Balance: In Search of the Lost Sense, New York: Little, Brown, and Co., →ISBN:

     Another person she's heard about can ride a giraffe unicycle on the wire, and perform a back tuck off the unicycle and land on the wire.

• giraffe (short form)