Obs. or dial. [app. a corruption of BLENK or BLINK.]
† 1. intr. To turn aside, blench, flinch, shrink. Obs.
1655. Gurnall, Chr. in Arm., ix. § 2 (1669), 56/1. The presumptuous sinner goes on & never blunks.
1680. Hickeringill, Meroz, 27. That can swallow Oath upon Oath and still their Consciences blunk no more than a piece of Brass?
2. (trans.) Sc. To spoil a thing, to mismanage any business (Jamieson).