Source : Webster's Revised Unabridged Dictionary (1913)

Tittup \Tit"tup\, v. i. [imp. & p. p. {Tittuped}or {Tittupped};
   p. pr. & vb. n. {Tittuping} or {Tittupping}.] [Written also
   {titup}.] [Cf. {Teeter}.]
   To behave or move in a lively or restless manner, as an
   impatient horse; to caper; to prance; to frisk. --Kipling.

Tittup \Tit"tup\, n.
   The act of tittuping; lively, gay, or restless behavior or
   gait; a prance or caper. [Written also {titup}.]