LEAST IN SIGHT, phr. (old).See quots.
1785. GROSE, A Classical Dictionary of the Vulgar Tongue, s.v. LEAST IN SIGHT, to play least in sight, to hide, keep out of the way, or make oneself scarce.
1859. G. W. MATSELL, Vocabulum; or, The Rogues Lexicon, s.v. LEAST. Keep out of the way; hide; out of sight.