[Origin uncertain: ? echoic; cf. tap, pat.] trans. a. To touch lightly, pat, tap. dial.
† b. A euphemism for To flog. Obs. slang.
1607. Dekker & Webster, Northw. Ho, II. i. Come tit me, come tat me, come throw a kiss at me.
1812. J. H. Vaux, Flash Dict., Tat, to flog, or scourge.
1847–78. Halliwell, Tat.… (3) To touch gently. Hants.
