Green’s Dictionary of Slang

(US) sized up, fully understood.

1914		Joyce ‘Grace’ Dubliners (1956) 168: I never saw such an eye in a man’s head. It was as much as to say: I have you properly taped, my lad. He had an eye like a hawk.
1916		T. Burke Limehouse Nights 288: I levanted but I reckon they got me taped somehow.
1926		S. O’Casey Plough and the Stars Act II: I have you well taped, me lassie.
1936		G. Greene Gun for Sale (1973) 43: We’ve got him taped.
1949		L. Glassop Lucky Palmer 154: She’s got you taped [...] She’s got you taped all right.
1951		Cusack & James Come in Spinner (1960) 240: D. D. T.’s got it all taped. She’s gonna marry Tickety-Boo come ’ell or ’igh water.
1953		P. Closterman (trans.) Big Show 135: They had me taped; their attacks, perfectly coordinated.
1958		(con. 1945) F. Davis Spearhead 55: She had people taped pretty well.
1961		R.S. Close With Hooves of Brass 82: ‘She’s got you taped, Ziff!’ ‘That’s right, miss - don’t let ‘im put anything over you!’.
1964		John Berryman 77 Dream Songs 7: He wishing he could squirm again where Hoot / is just ahead of rustlers, where William S / forgoes some deep advantage, & moves on, / where Hashknife Hartley having the matter taped / the rats are flying.
1967		P. Larkin letter 26 Feb. in Thwaite Sel. Letters (1992) 393: You seem to have got your life taped, & not red-taped either.
1973		H. Leonard Da (1981) Act I: He had you taped.
1991		J. Osborne Déjàvu Act I: Oh, a lot of people have got him taped, I expect.