giddy-up
gid dy-up |ˌgidē ˈəp ˈɡɪdi əp |(also giddap ) ▶exclam. used to get a horse to start moving or go faster. ORIGIN 1920s ( as giddap ): reproducing a pronunciation of get up .
giddy-up |ˈgɪdɪʌp, -ˈʌp | ▶exclamation said to make a horse start moving or go faster. ORIGIN 1920s (originally US as giddap ): reproducing a pronunciation of get up .