Green’s Dictionary of Slang

1. to cheat.

1835		G. Kent Modern Flash Dict. 7: Blind, to – to cheat under a pretence.
1848		Flash Dict. in Sinks of London Laid Open [as cit. 1835].
1865		Leaves from Diary of Celebrated Burglar 19/2: It’s no use trying to blind Bet, for she ain’t no child.

2. (US campus) to answer all the questions one is posed by an instructor, esp. when one has done no actual preparation.

1900

E.H. Babbitt ‘College Words and Phrases’ in DN II:i 23: blind, v. t. 1. To answer all the questions put by an instructor. 2. To make a false impression of having prepared the lesson, by reciting well.