Sc. Obs. Also teet-bo (Jam.). [First element perh. Sc. teet vb., to peep, sb. a peep, a glance; second perh. = boh! interj.: cf. keek-bo (KEEK v.3).] The childish game of bo-peep or peep-bo. Also reduplicated, titbore tatbore (cf. tit tat).
1614. P. Forbes, Short Disc. Advers. Deceit, 4. When, thervpon we have stablished against al their cavillations, they leape now back, & of new again intend accusation against our doctrine. what is this else, but (as children in their sporting, childishly practise and more childishly speak) to play titbore tatbore with vs?
1825. Jamieson, s.v. In Aberdeenshire the phrase Titbo tatbo is still used by some old people.