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. [Webster 1913 Suppl.]